Seminars
Tuesday 24 July 2018, 12:00
Towards a sustainable exploitation of the geosynchronous orbital region
Ioannis Gkolias
Politecnico di Milano
with Camilla Colombo (Politecnico di Milano, Italy) & Martin Lara (University of La Rioja, Spain)
Abstract:
Space benefits mankind through the services it provides to Earth. Future space activities progress thanks to space transfer and are safeguarded by space situation awareness. Natural orbit perturbations not only influence the orbit evolution of operational spacecrafts, but also dictate the evolution of space debris objects, including uncooperative satellites, spent rocket bodies and small fragments generated from explosion and collisions in space. A key idea in modern astrodynamical applications is to leverage the complex natural dynamics in order to significantly reduce mission costs and create new solutions for long-term space sustainability.
One of the most unique orbital environments around the Earth is that at geosynchronous altitude. It provides a valuable natural resource for telecommunication, broadcasting and earth monitoring missions. In the absence of atmospheric drag, human intervention is needed to keep the region clean of space debris. We revisit the problem of geosynchronous disposal orbits, trying to identify all possible dynamical mechanisms that could be exploited to design effective disposal strategies. Massive numerical simulations are coupled with optimisation techniques to achieve this goal. Not only we manage to improve the graveyard design for equatorial satellites, but also, we report the abundance of remarkably short-lived orbits at high inclinations. Those re-entry highways can be used from small constellations of 2-3 eccentric and inclined geosynchronous satellites that provide similar coverage to a single satellite on the equator. Future mission designs that employ these features can have lifecycles (from launch to atmospheric re-entry) of the order of 50 years.
To further study the underlying cleansing mechanism at high altitudes, we proceed with an analytical treatment of distant Earth orbits based on an ecliptic perspective. Traditionally, the forces in analytical satellite theories are expressed in a coordinate frame which involves the equatorial plane. However, for distant satellites, the Moon and Sun attractions are equally important, and those forces are expressed more conveniently in a frame associated to the ecliptic plane. We develop an analytical satellite theory in which all the forces are expressed with respect to the ecliptic plane. The main advantage of the method is that, after the averaging process, all time-dependent terms disappear from the formulation yielding a model suitable for preliminary design of disposal orbits. The combination of analytical treatment and numerical exploration, allow us to enhance the current mission design process, propose long-term sustainable alternatives and sculpture useful guidelines for future exploitation of the geosynchronous region.
http://redshift-h2020.eu/
www.compass.polimi.it
Past Seminars
Date | Speaker | Title |
17 Jul 2018 | George Livadiotis Southwest Research Institute, TX |
Kappa Distributions: Theory and Applications in Plasmas |
3 Jul 2018 | Pierfrancesco Di Cintio IFAC-CNR Institute of Applied Physics, Firenze, Italia |
N-body chaos and the continuum limit in numerical simulations, revisited |
26 Jun 2018 | Joan Font Instituto de Astrofísica de Canarias, La Laguna, Tenerife, Spain |
Annular kinematic segmentation of galaxy disks |
25 Jun 2018 | Hongqi Zhang National Astronomical Observatories, Chinese Academy of Sciences |
The role of the solar magnetic fields and helicity |
19 Jun 2018 | Konstantinos Gourgouliatos Durham University |
Reconfinement and Loss of Stability of Active Galactic Nuclei Jets |
12 Jun 2018 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics |
Dynamical features of resonances for Earth satellite orbits |
5 Jun 2018 | Panagiotis E. Kyziropoulos Department of Electrical and Computer Engineering, Democritus University of Thrace (DUTh) |
A study of computational methods for parallel simulation of the gravitational N-Body problem |
29 May 2018 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Magnetically driven jets from astrophysical black holes (Part II) |
22 May 2018 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Magnetically driven jets from astrophysical black holes |
15 May 2018 | Charalambos Sinnis |
Stability analysis of relativistic magnetized astrophysical jets |
7 May 2018 | Panos A. Patsis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Are there alternative bar building blocks to the families of the x1 tree? |
24 Apr 2018 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics |
Dynamics of Earth satellites and space debris |
17 Apr 2018 | Evangelia Samara Research Center for Astronomy and Applied Mathematics & Physics Department, University of Athens |
CME magnetic fields and their effect on planetary magnetospheres - generalization to other stars and exoplanets |
27 Mar 2018 | Fotis Anagnostopoulos University of Athens |
Έλεγχος κοσμολογικών μοντέλων με χρήση άμεσων μετρήσεων της διαστολής Hubble |
21 Mar 2018 | Nikos Prantzos Institut d'Astrophysique de Paris |
A short history of Nuclear astrophysics Part I : The energy of the Sun |
13 Mar 2018 | Yannis Kominis National Technical University of Athens |
Non-linearity and Asymmetry in non-Hermitian Photonics |
6 Mar 2018 | Ioannis A. Daglis National & Kapodistrian University of Athens, Greece |
Storms, substorms, particles and waves: at the heart of geospace weather |
27 Feb 2018 | Mirella Harsoula Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The manifold theory and its application in barred spiral galaxies |
20 Feb 2018 | Rocio Paez Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Space mission designs for stable Lagrangian points |
13 Feb 2018 | Ioannis Kontogiannis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Solar active region properties and CME characteristics |
6 Feb 2018 | Giannis Papagiannopoulos University of Athens |
Dynamical Analysis in Cosmological models of alternative Gravity |
31 Jan 2018 | Georgios Loukes-Gerakopoulos Astronomical Institute of the CAS, Czech Republic |
Celestial dynamics around a supermassive black hole |
23 Jan 2018 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Manifold-driven spirals, disc-Halo interaction and the secular evolution in barred-spiral galaxies |
16 Jan 2018 | Vasileios Drakopoulos University of Thessaly |
Complex Dynamics of several iterative methods |
9 Jan 2018 | Stam Nicolis University of Tours, France |
Deterministic chaos and information processing in quantum gravitational systems |
19 Dec 2017 | Athanasios C. Tzemos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
A Review of Chaos in BQM |
12 Dec 2017 | Konstantinos Karamanos TEI Athens |
On the Poincare recurrence theorem in higher dimensions |
5 Dec 2017 | Academician Prof. Dimitri Nanopoulos Academy of Athens |
Starobinsky-like inflation, supercosmology and neutrino masses in no-scale flipped SU(5) |
28 Nov 2017 | Vassilios Constantoudis Institute of Nanoscience and Nanotechnology, NCSR Demokritos |
Seeking the mathematical footprint of meaning in written texts: multifractal analysis and long-range correlations |
21 Nov 2017 | Andreas Efstathiou European University Cyprus |
Models for the panchromatic emission of galaxies in the near and far Universe |
14 Nov 2017 | Evangelos Paouris Athens Space Weather Forecasting Center, University of Athens |
Forecasting Space Weather conditions from Interplanetary Coronal Mass Ejections |
7 Nov 2017 | Fr. Georgios Anagnostopoulos Demokritos University of Thrace, Dep. Electrical & Computer Engineering |
Space Observations and Earthquake Related Electromagnetic Phenomena |
31 Oct 2017 | Yannis Almirantis Institute of Biosciences and Applications, NCSR "Demokritos" |
Origin of life: abiogenesis – prebiotic evolution – complexity |
24 Oct 2017 | Alceste Bonanos National Observatory of Athens |
First results from the lunar monitoring project NELIOTA |
17 Oct 2017 | Maria Chira University of Thessaloniki |
Environmental Dependence of the Abundance function of Light-Cone simulation Dark Matter Halos |
10 Oct 2017 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Tidal Streams around Galaxies |
3 Oct 2017 | Rocio I. Paez Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
A fully predictive model for the adiabatic evolution of the actions in Arnold diffusion |
26 Sep 2017 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Magnetic Winds around Astrophysical Black Holes |
19 Sep 2017 | Astero Provata Institute of Nanoscience and Nanotechnology (INN) of NCSR “Demokritos” |
Χιμαιρικές καταστάσεις σε δίκτυα ταλαντωτών με μη-τοπική σύζευξη |
12 Sep 2017 | Maria Petropoulou Purdue University, USA |
Plasmoids in relativistic magnetic reconnection: the blobs of blazar emission models? |
5 Sep 2017 | Haris Skokos Department of Mathematics and Applied Mathematics, University of Cape Town |
Heterogeneity and Chaos: Granular Chains and DNA models |
27 Jun 2017 | Konstantinos Karamanos TEI of Athens |
Measuring the Uncomputable: Entropy Analysis of Automatic Sequences Revisited |
20 Jun 2017 | Athanasios C. Tzemos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Partial Integrability in 3d Bohmian Trajectories |
13 Jun 2017 | Alexei A. Pevtsov National Solar Observatory, USA and University of Oulu, Finland |
Search for a Signature of Twist-Removal in Magnetic field of Sunspots in Relation with Major Flares |
7 Jun 2017 | Angelos Vourlidas Applied Physics Laboratory, Johns Hopkins University (JHUAPL) |
Another STEREO Accomplishment: The First Multi-Viewpoint Coronal Mass Ejection Catalog |
30 May 2017 | Rudolf Dvorak University of Vienna |
The Race to find the Second Earth |
23 May 2017 | Costis Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Diagnostic of the Chromosphere - corona transition region in Extreme Ultraviolet spectrum. Analysis of the mechanism of radiative scattering using spectral lines recorded with SUMER and IRIS spectrographs |
16 May 2017 | Konstantinos Karamanos TEI of Athens |
Introduction to Symbolic Dynamics at the Feigenbaum point |
9 May 2017 | Emmanuel N. Saridakis National Technical University of Athens & CASPER, Physics Dept., Baylor University |
Modified Gravity Theories and their Cosmological Consequences |
2 May 2017 | Panayiotis Stavrinos Dept. of Mathematics, University of Athens |
Finsler Geometry, Lorentz Violation and Cosmology |
25 Apr 2017 | Manolis K. Georgoulis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Magnetic Field Magnitude of Coronal Mass Ejections in the Solar and Stellar Habitable Zones: A Habitability Constraint |
4 Apr 2017 | Anastasios Anastasiadis National Observatory of Athens, IAASARS |
Foretelling Flares and Solar Energetic Particle Events: the FORSPEF tool |
28 Mar 2017 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Practical Applications of Magnetohydrodynamics |
21 Mar 2017 | Demosthenes Kazanas NASA/GSFC, Univ. of Maryland, Corresponding Member of the Academy of Athens |
The Universal Magnetic Structure of Black Hole Accretion Disk Winds |
14 Mar 2017 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Dynamics of tidal interactions |
7 Mar 2017 | Emmanuel Floratos (Prof. Emer.) University Of Athens & Institute Of Nuclear And Particle Physics NCSR Demokritos |
Eigenstate Thermalization Hypothesis and Fast Scrambling Bound on Black Hole Horizons: A Quantum Cat Map Toy Model |
28 Feb 2017 | Vassilis M. Rothos Aristotle University of Thessaloniki |
Localized Structures in Nonlinear Magnetic metamaterial Lattices |
21 Feb 2017 | Konstantinos N. Gourgouliatos Department of Applied Mathematics, University of Leeds |
Magnetic Field Evolution in Neutron Star Crusts |
16 Feb 2017 | Athena Coustenis LESIA - Observatoire de Paris, Paris Science Letters Research Univ., France |
Space Exploration of Habitable Worlds in the Outer Solar System |
7 Feb 2017 | Zacharias Roupas Eötvös Loránd University |
Gravitational Phase Transitions |
31 Jan 2017 | Rocio Isabel Paez Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Resonant dynamics in the Trojan problem |
24 Jan 2017 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Emergent non-linearities from quantum mechanics |
17 Jan 2017 | Despina Hatzidimitriou University of Athens |
The Hubble Catalog of Variables |
11 Jan 2017 | Panos Patsis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Shocks, star formation and spiral arms in galaxies |
13 Dec 2016 | Manolis Xilouris National Observatory of Athens / IAASARS |
Nearby galaxies as seen by the Herschel Space Observatory |
6 Dec 2016 | Thanassis Akylas National Observatory of Athens / IAASARS |
Compton-thick AGN in the 70-month Swift-BAT All-Sky Hard X-ray Survey |
29 Nov 2016 | Kostas Florios Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Forecasting solar flares using magnetogram-based predictors and machine learning |
22 Nov 2016 | Haris Skokos Department of Mathematics and Applied Mathematics, University of Cape Town |
Numerical tools for investigating the dynamics of Hamiltonian systems |
15 Nov 2016 | Vassilis Tritakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Construction and Development of a Permanent Station for Schumann Resonance Observations, in the Greek Area. First Results and Future Plans. |
8 Nov 2016 | E. Athanassoula Laboratoire d'Astrophysique de Marseille (LAM |
Numerical simulations of the formation of disc galaxies in major mergers |
1 Nov 2016 | Athina Pouri Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Testing General Relativity on cosmological scales using Large Scale Structure and the Growth Rate Data |
25 Oct 2016 | Ioannis Kontogiannis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Non-neutralized currents and Ising energy predictive potential on solar flares |
11 Oct 2016 | Demetrios Papadopoulos Aristotle University of Thessaloniki |
Rayleigh-Taylor Instabilities in Curved Space-Times |
4 Oct 2016 | Athanasios C. Tzemos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
3-d Bohmian Chaos |
27 Sep 2016 | George Loukes-Gerakopoulos Charles University in Prague |
Spinning test-body orbiting around Schwarzschild black hole: circular dynamics and gravitational-wave fluxes |
22 Sep 2016 | Eugene Vasiliev Oxford University |
Self-consistent galaxy models with action-based distribution functions |
19 Jul 2016 | Constantinos Kalapotharakos University of Maryland, NASA GSFC |
Macroscopic and Kinetic Pulsar Magnetosphere Models in the FERMI Era |
7 Jul 2016 | Victor Debattista University of Central Lancashire, UK |
Understanding the trends in the Milky Way’s bulge |
5 Jul 2016 | Piyali Chatterjee Indian Institute of Astrophysics, Bangalore |
Severe Space weather: How the Sun produces Homologous and Cannibalistic Coronal Mass Ejections (CME) |
28 Jun 2016 | Sophia Lianou Laboratoire AIM, CEA/IRFU/Service d'Astrophysique, Univ. Paris Diderot |
Dwarf Galaxy Evolution: Within and around |
21 Jun 2016 | Mirella Harsoula Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Analytical forms of chaotic spiral arms in barred-spiral galaxies |
14 Jun 2016 | Prof. Tassos Bountis University of Patras and Corresponding Member of the Academy of Athens |
Invertible Maps, the Parametrization Method and Breathers in KG Lattices |
7 Jun 2016 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Realistic analytical modelling of the long-term orbital dynamics in the Geostationary Earth Orbit domain |
31 May 2016 | Georgios Loukes-Gerakopoulos ITP, Charles University in Prague, Czech Republic |
How to detect deterministic chaos in gravitational waves |
24 May 2016 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Dissipative pulsar magnetospheres |
17 May 2016 | Constantinos Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Scattering effects in the spectral lines of the ionized carbon C IV 1548,1550 Angstrom, emitted by the solar transition region |
10 May 2016 | Panos A. Patsis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Comparing Stellar and Gaseous Flows in the Spiral Arms of Barred-Spiral Models |
21 Apr 2016 | Prof. Hélène Courtois University of Lyon, France |
Presentation of the project: "Cosmic Flows" |
12 Apr 2016 | Spyros Basilakos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Geometrodynamics and Cosmology |
5 Apr 2016 | Academician George Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The Nature of Reality |
29 Mar 2016 | Ioannis Gkolias Department of Mathematics, University of Rome Tor Vergata |
The theory of secondary resonances in the spin-orbit problem |
22 Mar 2016 | Kostas Kokkotas University of Tübingen |
Gravitational Waves - Detection and Prospects |
15 Mar 2016 | Claudia Cicone ETH Zurich, Institute for Astronomy |
Massive molecular outflows and AGN feedback |
8 Mar 2016 | Nektarios Vlahakis University of Athens, Faculty of Physics |
Perturbing relativistic, magnetized jets: instabilities, and the interaction with the environment |
1 Mar 2016 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The effect of companions on galactic discs - a study via the newly developed N-Body code MAIN |
23 Feb 2016 | Ioannis Kontogiannis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Solar Active Region Properties as Flare Predictors |
16 Feb 2016 | Kleomenis Tsiganis Aristotle University of Thessaloniki |
Is there a 'ninth planet' in the solar system? |
9 Feb 2016 | Joan Solà University of Barcelona |
Running Vacuum in the Universe: hints of cosmological physics beyond the ΛCDM |
2 Feb 2016 | Βασίλης Κωνσταντούδης Ινστιτούτο Νανοεπιστήμης και Νανοτεχνολογίας, ΕΚΕΦΕ Δημόκριτος |
Mη-γραμμική δυναμική και μορφοκλασματική γεωμετρία στη νανοτεχνολογία |
26 Jan 2016 | Savvas Nesseris Instituto de Fisica Teorica, Madrid |
The Dark Side of the Universe and Cosmological Observations |
19 Jan 2016 | Naoum Bacalis National Hellenic Research Foundation |
The need, benefits, and demonstration of a minimization principle for excited quantum states |
12 Jan 2016 | Prof. George Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The History of Orbits (A Personal Diary) |
22 Dec 2015 | Georgios Loukes-Gerakopoulos ITP, Charles University in Prague, Czech Republic |
The motion of a spinning particle in a curved spacetime |
15 Dec 2015 | Heikki Salo & Eija Laurikainen Astronomy and Space Physics Department, University of Oulu |
Barlenses and their connection to boxy/peanut/X-shape bulges |
8 Dec 2015 | Athina Pouri Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Testing General Relativity on cosmological scales using Large Scale Structure and High Energy Extragalactic Sources |
1 Dec 2015 | Athanasios C. Tzemos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Quantum Paradoxes |
24 Nov 2015 | Kalliopi Dasyra University of Athens |
Molecular gas outflows driven by the jets of AGN |
10 Nov 2015 | Charalampos Markakis University of Southampton |
Hamiltonian Hydrodynamics & Binary Neutron Stars |
3 Nov 2015 | Sotiris Chatzopoulos MPE, Garching, Germany |
The old nuclear star cluster in the Milky Way: dynamics, mass, statistical parallax, black hole mass and dust extinction |
27 Oct 2015 | Antonio Nathanail Institute for Theoretical Physics (ITP), Goethe University, Frankfurt, Germany |
Looking at the black hole that powers Long Gamma Ray Bursts |
20 Oct 2015 | Konstantinos Karamanos TEI of Athens |
Distributional Questions in Non-Linear Science: A computational and explanatory perspective |
14 Oct 2015 | Demosthenes Kazanas NASA/GSFC, Univ. of Maryland, Corresponding Member of the Academy of Athens |
X-ray Absorbers in Active Galactic Nuclei (AGN) and Galactic Binary Sources |
6 Oct 2015 | Panagiotis Kyziropoulos Democritus University of Thrace |
A new Particle Mesh N-body code based on Approximate Inverse Matrix Techniques |
29 Sep 2015 | Constantinos Skordis University of Cyprus |
Linking tests of gravity from cosmology to the Earth and beyond |
22 Sep 2015 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The concept of Laplace plane and the 3D dynamics in the geostationary ring |
15 Sep 2015 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Review of Magnetic Models of the Solar Corona |
1 Sep 2015 | Aleksander Sadowski Massachusetts Institute of Technology |
Simulations of Radiative Black Hole Accretion in General Relativity |
23 Jun 2015 | Amalia Gkana and Loukas Zachilas Department of Economics, University of Thessaly |
Chaotic dynamics and population outbreaks in ICD-10-A54 transmission and prey-predator interactions |
16 Jun 2015 | Haris Skokos Department of Mathematics and Applied Mathematics, University of Cape Town |
Chaotic behavior of disordered nonlinear lattices |
9 Jun 2015 | Georgios Loukes-Gerakopoulos ITP, Charles University, Prague |
Motion of spinning particles around black holes |
4 Jun 2015 | Roger Blandford Stanford University / KIPAC |
The Music of the Sphere: overview of cosmology plus new approach to mapping the observable universe |
2 Jun 2015 | Denize Gabuzda Cork University, Ireland |
The Tenacious Helical Magnetic Fields of AGN Jets |
26 May 2015 | Vasileios Paschalidis Princeton University |
Black hole collisions as sources of gravitational and electromagnetic waves |
19 May 2015 | C. Tsironis [1], A. Anastasiadis [1], C. Katsavrias [1],[2] and I. A. Daglis [2] National Observatory of Athens, [2] University of Athens |
Analysis of charged particle dynamics in the inner magnetosphere during the occurrence of geomagnetic disturbances |
12 May 2015 | Manolis K. Georgoulis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The Athens Effective Solar Flare Forecasting (A-EFFort) Project: RCAAM's Contribution to ESA's Space Situational Awareness (SSA) Programme |
5 May 2015 | Martin Mestre Instituto de Astrofisica La Plata (CONICET-UNLP), Argentina |
The effects of the triaxiality of dark matter halos on stellar streams |
28 Apr 2015 | Costis Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Spectroscopic study of active region NOAA 11429 before two major Coronal Mass ejections |
20 Apr 2015 | Padelis Papadopoulos ESO visitor scientist, Ernest Rutherford Fellow (University of Cardiff), Assistant Professor, University of Thessaloniki |
A major effect of Cosmic Rays on the ISM discovered: implications for tracing H2 gas in the Universe |
1 Apr 2015 | Serguei Komissarov Leeds University |
The Physics of the Crab Nebula |
24 Mar 2015 | Athanasios C. Tzemos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Entropy In Quantum Mechanics |
17 Mar 2015 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Space Debris and resonant dynamics in the geostationary ring |
10 Mar 2015 | Demetrios Papadopoulos Aristotle University of Thessaloniki |
Frequency Spectrum of Radiation from Accelerated Charged Particles in a Magnetized Curved Space Time |
3 Mar 2015 | Ioanna Leonidaki National Observatory of Athens / IAASARS |
Detection and Study of Extragalactic multi-wavelength Supernova Remnants |
25 Feb 2015 | Elias Koulouridis National Observatory of Athens / IAASARS |
The environment of AGN - Exotic AGN |
17 Feb 2015 | Maria Petropoulou(1) & Stavros Dimitrakoudis(2) (1) Department of Physics and Astronomy, Purdue University, (2) National Observatory of Athens / IAASARS |
Investigating the origin of high energy astrophysical neutrinos |
10 Feb 2015 | Costis Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Particle acceleration in nanoflares and the heating of the solar corona |
3 Feb 2015 | Kalliopi Dasyra University of Athens, Physics Department, Section of Astronomy, Astrophysics and Mechanics |
AGN jets affecting galaxy evolution: evidence from observations |
27 Jan 2015 | Marina Vika National Observatory of Athens / IAASARS |
MegaMorph: developing advanced galaxy decomposition software for multi-wavelength surveys |
20 Jan 2015 | Kosmas Gazeas Dept. of Physics, University of Athens |
Contact Binaries and Stellar Mergers |
13 Jan 2015 | Academician George Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Chaos and Chance |
23 Dec 2014 | Katerina Visnjic Princeton University |
Probing the Early Universe with the Cosmic Microwave Background Polarization |
16 Dec 2014 | Giuseppe Pucacco Università di Roma "Tor Vergata" |
Degeneracies and singularities in resonant detuned normal forms |
9 Dec 2014 | Marianna Korsós SP2RC, University of Sheffield |
Role of sunspot group dynamics in flare and CME occurrence: A reliable new forecast |
2 Dec 2014 | Steffen Lange Institut für Theoretische Physik & Center for Dynamics, Technische Universität Dresden & Max-Planck-Institut für Physik komplexer Systeme |
Global structure of regular tori in a generic 4D symplectic map |
25 Nov 2014 | Christophe Sauty Observatoire de Paris |
Numerical simulations versus analytical models: What can we learn about counter-rotation and dead zones in young star and AGN jets? |
11 Nov 2014 | Emmanouil (Manolis) Angelakis Max-Planck-Institut für Radioastronomie, Bonn |
Physics of Relativistic Extragalactic Plasma Elements - through High Cadence Optical and Radio Polarisation Monitoring |
6 Nov 2014 | Luciano Rezzolla Goethe University, Institute for Theoretical Physics, Frankfurt |
Merging of Neutron Star Binaries in Full General Relativity |
21 Oct 2014 | Vasileios Tritakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Global Change and mid/long-term sequences in the area of Greece |
14 Oct 2014 | Padelis Papadopoulos Cardiff University |
A step in the dark: The initial conditions of star formation and how they can be rese |
7 Oct 2014 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
It keeps going and going and going... |
30 Sep 2014 | Sung-Hong Park National Observatory of Athens |
Study of a tornado-like solar prominence and its eruption |
23 Sep 2014 | Konstantinos Karamanos University of Athens |
Chaos in Number Theory |
16 Sep 2014 | George Contopoulos Academy of Athens |
Mathematics, Physics and Computers |
22 Jul 2014 | Constantinos Kalapotharakos University of Maryland, NASA GSFC |
Pulsars: electromagnetic machines in extreme operating conditions. |
1 Jul 2014 | Dimitris Christodoulou University of Massachusetts Lowell |
2nd Order Differential Equations of Mathematical Physics. From their Trivial Solutions, to the Cauchy Problem and beyond. |
24 Jun 2014 | Salvatore Capozziello Universita di Napoli “Federico II” and INFN Sez. di Napoli |
Dark Energy and Dark Matter as Curvature Effects |
17 Jun 2014 | Athanasios C. Tzemos University of Patras |
Noise Effects on Open Quantum Systems |
10 Jun 2014 | Antonios Manousakis N. Copernicus Astronomical Center - PAN |
Accretion in Supergiant High Mass X-ray Binaries |
2 Jun 2014 | Preben Grosbol European Southern Observatory |
Observing density waves in spiral galaxies using birthplaces and NIR photometry |
27 May 2014 | Panos A. Patsis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The phase space of 3D bars |
20 May 2014 | Panagiotis Papaspirou University of Athens |
The Keplerian Paradigm: Its Place in Astronomy |
13 May 2014 | Stephen Williams National Observatory of Athens / IAASARS |
The Massive Stellar Content of M83 as Revealed by Spitzer |
6 May 2014 | Emmanouil Rovilos |
The importance of infrared radiation in the study of Active Galactic Nuclei |
29 Apr 2014 | Joan Font Instituto de Astrofisica de Canarias |
Interlocking Resonance Patterns in Galaxy Disks |
15 Apr 2014 | Guillaume Aulanier Paris Observatory |
Electric currents and solar eruptions |
14 Apr 2014 | Stamatios Krimigis Office of Space Research & Technology, Academy of Athens & JHU/APL |
Voyager's exit from the Heliosphere to the Galaxy |
8 Apr 2014 | Ioannis Haranas York University, Toronto |
Perturbations of Low Orbiters in a Dusty Martian Atmosphere |
1 Apr 2014 | Spyros Basilakos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Recent developments in early Cosmology |
18 Mar 2014 | Kostas Dialynas Office of Space Research & Technology of the Academy of Athens |
The study of the global Heliosheath using Energetic Neutral Atom measurements obtained by the Cassini/INCA imager |
11 Mar 2014 | Grégoire Nicolis Université Libre de Bruxelles |
Fundamental Problems in Complexity Research |
4 Mar 2014 | Vassilis Charmandaris Director IAASARS/National Observatory of Athens & Dept. of Physics, Univ. of Crete |
The Physical Properties of Luminous Infrared Galaxies: Unveiling the Dust |
25 Feb 2014 | Ioannis Georgantopoulos National Observatory of Athens |
Highly Obscure Supermassive Black holes and the new ESA's mission Athena |
18 Feb 2014 | Leela Koutsantoniou Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
The Poynting – Robertson Effect in General Relativity and its Applications to Accretion Disk and the Cosmic Battery Model |
11 Feb 2014 | Kostas Moraitis Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Validation of a magnetic energy and helicity calculation method in solar active regions |
4 Feb 2014 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Gamma-ray bursts as potential standard candles in Cosmology |
28 Jan 2014 | Leandros Perivolaropoulos Department of Physics, University of Ioannina |
Is there a Fundamental Cosmic Dipole? |
21 Jan 2014 | Tassos Bountis |
Complex Problems in Hamiltonian Dynamics |
14 Jan 2014 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens |
Resonant Dynamics for Trojan Exoplanets |
7 Jan 2014 | Nick E. Mavromatos Kings College, London |
Dynamical Breaking of Supergravity via gravitino condensation and inflation |
17 Dec 2013 | George Contopoulos Research Center for Astronomy of the Academy of Athens |
The latest book by Roger Penrose |
10 Dec 2013 | Panos A. Patsis Research Center for Astronomy of the Academy of Athens |
"Sticky peanuts" - The building of boxy and X-shaped profiles in the edge-on views of disk galaxies |
3 Dec 2013 | Nikolaos Nikoloudakis National Observatory of Athens / IAASARS |
Clustering analysis of high-redshift Luminous Red Galaxies in SDSS Stripe 82 |
29 Nov 2013 | Joan Sola University of Barcelona | Higgs boson and vacuum energy in quantum field theory and cosmology |
19 Nov 2013 | Kostas Karamanos Department of Physics, University of Athens | Are Fractals Optimal Geometries for Diffusion? |
12 Nov 2013 | Manolis Georgoulis | Self-Organized Criticality on Top of a Turbulent Substrate: the Possible Case of (Eruptive) Solar Active Regions |
5 Nov 2013 | Michaila Dimitropoulou NSN Athens, Greece | Self-Organized Criticality: From the Sandpile to the Sun |
29 Oct 2013 | Danae Polychroni University of Athens | Two Mass Distributions in the L 1641 Molecular Clouds: The Herschel Connection of Dense Cores and Filaments in Orion A |
22 Oct 2013 | David Eden Liverpool John Moores University | The Role of Spiral Arms on the Star Formation Process |
15 Oct 2013 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Trojan captures and escapes |
8 Oct 2013 | Daniela Pugliese Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Effective potential approach in thick toroidal disks |
1 Oct 2013 | Maria Petropoulou University of Athens | Spontaneous gamma-ray absorption and astrophysical applications |
24 Sep 2013 | Zacharias Roupas University of Athens | Gravothermal instabilities of fluid spheres in the presence of a cosmological constant |
16 Sep 2013 | Prof. Gang Zhao National Astronomical Observatories, Chinese Academy of Sciences | Introduction of LAMOST and its survey |
3 Sep 2013 | Prof. Christian Boily Astronomical Observatory, University of Strasbourg | Orbital diffusion and anisotropies in dense stellar systems with black holes |
3 Jul 2013 | Shohreh Abdolrahimi Oldenburg University | Distorted Five-dimensional Electrically Charged Black Holes. |
25 Jun 2013 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics Academy of Athens | Applications of Invariant Manifolds in Dynamical Astronomy. |
18 Jun 2013 | Angel Jorba Departament de Matematica Aplicada i Analisi Universitat de Barcelona | Invariant manifolds and Solar sails. |
11 Jun 2013 | Sofia Carvalho Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The Euclid space mission. |
4 Jun 2013 | Mirella Harsoula Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The diffusion of chaotic orbits in 3D barred spiral galaxies. |
28 May 2013 | Panagiotis Koumantos University of Athens, Dept. of Mathematics | Dynamical Systems and Thermodynamics-Magneto-hydrodynamics. |
21 May 2013 | Panos Patsis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Backbones of stellar barred-spiral morphologies. |
14 May 2013 | Spyros Basilakos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Geometrodynamics in Cosmology. |
8 May 2013 | Prof. Donald Lynden-Bell University of Cambridge | Thought experiments on the Gravity of Stresses and Currents. |
30 Apr 2013 | Elias Vagenas Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Black Hole Thermodynamics: An update |
23 Apr 2013 | Ioannis Kontogiannis University of Athens, Physics Department, Section of Astronomy, Astrophysics and Mechanics | Magnetic shadows and power halos as a result of magnetohydrodynamic mode conversion in the solar chromosphere: The role of mottles and the magnetic field. |
16 Apr 2013 | Anastasios Anastasiadis Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing National Observatory of Athens | Magnetic Reconnection and the particle acceleration process in Solar flares |
9 Apr 2013 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The power-law dependence of the Lyapunov characteristic exponent of the chaotic orbits on the central mass in galaxies |
2 Apr 2013 | Giorgos Anastasiou Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Massive Gravity in (2+1)-dimensions and Lifshitz spacetimes |
26 Mar 2013 | Alexandros Kehagias National Technical University of Athens | Non-Gaussianity in the sky |
19 Mar 2013 | Kostas Tziotziou Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Interpreting Eruptive Behavior in NOAA AR 11158 via the Region's Magnetic Energy and Relative Helicity Budgets |
13 Mar 2013 | Constantinos Kalapotharakos GSFC/University of Maryland | Νumerical investigation of pulsar magentospheres |
5 Mar 2013 | Demosthenes Kazanas NASA/Goddard Space Flight Center, Corresponding Member of the Academy of Athens | GRB: Crisis, Some New Correlations, Back to an Old Motif and Some Light Eventually (perhaps?)! |
26 Feb 2013 | George Contopoulos Academician, Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The Foundations of Mathematics |
19 Feb 2013 | Loucas G. Christophorou Academy of Athens | Greek Energy Resources |
12 Feb 2013 | Amalia Corral IAASARS, National Observatory of Athens | AGN Iron lines from X-ray surveys |
5 Feb 2013 | Emmanuel N. Saridakis National Technical University of Athens & CASPER, Physics Dept., Baylor University | f(T) Gravity and Cosmology |
29 Jan 2013 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Towards a practical computation of the diffusion coefficient along resonances: bridging Chirikov with Nekhoroshev theory. |
22 Jan 2013 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | 'Hairy' Black Holes and Astrophysical Jets. |
15 Jan 2013 | Piero Ranalli National Observatory of Athens, Greece & University of Bologna, Italy | X-ray Gaseous Emission in Star Forming Galaxies. |
18 Dec 2012 | George Voyatzis Aristotle University of Thessaloniki | Destabilization of planetary systems due to stellar mass loss. Escape of planets. |
11 Dec 2012 | Danae Polychroni University of Athens, Faculty of Physics | Triggered star formation in the W3 GMC: Does the IMF notice? |
4 Dec 2012 |
Nikos Pappas University of Ioannina | Angular profile of Particle Emission from a Higher-dimensional Black Hole |
27 Nov 2012 | Salvatore Capozziello Universita di Napoli "Federico II" and INFN Sez. di Napoli | Hamiltonian Dynamics and Symmetries in Extended Gravity Cosmology |
20 Nov 2012 | Manolis Georgoulis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Pre-Eruption Evolution in Solar Active Regions: a Coherent Causal Sequence |
13 Nov 2012 | Spyros Basilakos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Testing Einstein's gravity on cosmological scales |
6 Nov 2012 | Ioannis Georgantopoulos National Observatory of Athens | Compton-thick Active Galactic Nuclei |
30 Oct 2012 | Costis Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Loop geometry and flows from Hinode/EIS observations |
16 Oct 2012 | Jason Spyromilio European Southern Observatory | The European Extremely Large telescope |
9 Oct 2012 | Maxim Lyutikov Purdue University & INAF Osservatorio Astrofisico di Arcetri | The Double Pulsar as a Probe of Fundamental Physics |
25 Sep 2012 | Dmitry Sokoloff Moscow State University | Solar Dynamo in Light of Helicity Data |
18 Sep 2012 | Angelos Vourlidas Naval Research Laboratory | How Many CMEs Have Magnetic Flux Ropes and How to Find Out: A Synthesis of 16 Years of Coronagraph Observations |
17 Jul 2012 | Sofia Carvalho Research Center for Astronomy and Applied Mathematics of the Academy of Athens | CMB lensing research and results |
10 Jul 2012 | Luciano Darriba Universidad Nacional de La Plata | A comparison of chaos indicators |
2 Jul 2012 | Robertus Erdelyi University of Sheffield | Attempt to solve by solar magneto-seismology one of astrophysics great problem: The coronal heating enigma |
26 Jun 2012 | Prof. Joan Sola Facultat de Fisica, Univ. de Barcelona | "Constants" of Nature, matter non-conservation and dynamical dark energy |
19 Jun 2012 | Kyriaki Dionysopoulou Max Planck Institute for Gravitational Physics | General Relativistic Resistive Magnetohydrodynamics with Whisky |
14 Jun 2012 | Prof. Puragra GuhaThakurta | Our Neighbor M31: A Close-up View of Galaxy Formation |
5 Jun 2012 | Δρ. Θανάσουλας Κωνσταντίνος Γεωφυσικός | Είναι δυνατή η βραχυπρόθεσμη πρόγνωση σεισμών; Μια θεώρηση του προβλήματος υπό το πρίσμα της κλασικής φυσικής |
29 May 2012 | Nikolaos Stergioulas Department of Physics, Aristotle University of Thessaloniki | Self-gravitating tori around black holes and their instabilities |
22 May 2012 | Academician Prof. George Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Escapes of Stars in Galaxies |
15 May 2012 | Kostas Tziotziou Research Center for Astronomy and Applied Mathematics of the Academy of Athens | A new way of inferring magnetic energy and helicity in solar active regions |
8 May 2012 | Matthaios Katsanikas Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Η δομή του φασικού χώρου σε γαλαξιακά δυναμικά τριών βαθμών ελευθερίας. |
24 Apr 2012 | Panayiotis Stavrinos Dept. of Mathematics, University of Athens | Η Τοπικά Ανισοτροπική Δομή της Γεωμετρίας Finsler στη Σχετικότητα και την Κοσμολογία. |
10 Apr 2012 | Manolis Plionis National Observatory of Athens | The Hubble constant and the dark energy equation of state using star-forming galaxies |
2 Apr 2012 | Nikos Prantzos C.N.R.S. - Institut d' Astrophysique de Paris | The chemical evolution of the Milky Way |
27 Mar 2012 | Anastasios Anastasiadis National Observatory of Athens and the HNSWRN team. | Introducing the Hellenic National Space Weather Research Network (HNSWRN) |
20 Mar 2012 | Xenophon Moussas University of Athens, Physics Dept. | Recent results from the study of the Antikythera Mechanism: the signature of Archimedes on the eclipses and operation of the instrument, Kepler before Kepler? |
13 Mar 2012 | Jacobus van der Weele University of Patras, Mathematics Dept. | Spontaneous Cluster Formation in Multi-Particle Flows. |
6 Mar 2012 |
Theodoros Smponias University of Ioannina | Modelling multi-wavelength and particle emission from accreting binary systems. |
28 Feb 2012 | Zsolt Sandor University of Innsbruck, Institute of Astro- and Particle Physics | Large Vortices: the Birthplaces of Planets? |
21 Feb 2012 | Kleomenis Tsiganis Aristotle University of Thessaloniki | A formation scenario for the Uranian satellites: making the orbits of the satellites compatible with the planet's axial tilt. |
14 Feb 2012 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Formation and destruction of jets in X-ray binaries. |
7 Feb 2012 | Demosthenes Kazanas NASA/Goddard Space Flight Center, USA, Corresponding Member of the Academy of Athens | Some Thoughts on Mach's Principle and a Characteristic Acceleration in the Universe. |
31 Jan 2012 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Low-dimensional tori in Fermi-Pasta-Ulam chains |
24 Jan 2012 | Yannis Kominis National Technical University of Athens | Revision and extension of the Quasilinear Diffusion Theory: General kinetic formulation of wave-particle interactions |
17 Jan 2012 | Nikos Delis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The effect of a central black hole in the degree of chaos and in the secular evolution of galaxies |
10 Jan 2012 | Manolis Xilouris National Observatory of Athens | Nearby galaxies as seen by the Herschel Space Observatory |
20 Dec 2011 | Costis Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Particles acceleration, nanoflares and coronal heating |
13 Dec 2011 | Manolis K. Georgoulis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Solar Energetic Particle (SEP) Events: Their Origin and Environment, from Sun to the Interplanetary Space |
6 Dec 2011 | Andronikos Paliathanasis Department of Physics, Section of Astrophysics Astronomy and Mechanics, University of Athens | The Riemannian Kepler Ermakov system |
29 Nov 2011 | Spyros Basilakos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The Physical Properties of the Cosmic Acceleration: a new scalar field or a modified theory of gravity? |
22 Nov 2011 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Προσεγγίζοντας την πραγματική μαγνητόσφαιρα των pulsars |
15 Nov 2011 | Academician Prof. George Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The limits of Determinism |
8 Nov 2011 | Prof. Apostolos Mastichiadis University of Athens | The hadronic model of Active Galactic Nuclei |
1 Nov 2011 | Thanassis Katsiyannis National Observatory of Athens, Institute of Astronomy and Astrophysics | Greek Participation to the Extreme UV Imager (EUI) development |
25 Oct 2011 | George Lukes-Gerakopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Searching for non-Kerr compact objects |
18 Oct 2011 | Christos Efthymiopoulos | Normal forms and the representation of Arnold diffusion |
27 Sep 2011 | Gordon Petrie National Solar Observatory | Measurements and Models of Solar Active Magnetic Fields |
9 Sep 2011 | Prof. Joe Silk Department of Astrophysics, University of Oxford | Do we understand how galaxies formed? |
21 Jun 2011 | Dr. Markos Trichas Harvard University | The nature of far-infrared emission from Active Galactic Nuclei |
14 Jun 2011 | Dr. Thanos Manos Center for Research on Applied Nonlinear Systems (CRANS), University of Patras & School of applied sciences, University of Nova Gorica, Slovenia | Chaos and order in systems with long-range interactions: Applications to a Hamiltonian Mean Field model and a barred galaxy system |
7 Jun 2011 | Academician Prof. George Contopoulos | Artificial Intelligence and Conciousness |
31 May 2011 | Prof. Antony Valentini Clemson University, Dept. of Physics and Astronomy | Beyond the Quantum |
24 May 2011 | Michael N. Vrahatis Computational Intelligence Laboratory, Department of Mathematics, University of Patras Artificial Intelligence Research Center | Studying the Basin of Convergence of Methods for Computing Periodic Orbits |
17 May 2011 | Prof. Tassos Bountis Department of Mathematics and Center for Research and Applications of Nonlinear Systems (CRANS), University of Patras | Complex Statistics of Multidimensional Hamiltonian Systems with Applications to Galactic Dynamics |
10 May 2011 | Dr. Antonis Georgakakis National Observatory of Athens | What drives the evolution of Active Galactic Nuclei? |
3 May 2011 | Dr. Georgia Tsiropoula National Observatory of Athens | Ο ρόλος των ηλιακών ψηφίδων στο σχηματισμό άλω ισχύος, μαγνητικής σκιάς και μαγνητικού θόλου με χρήση παρατηρήσεων του μαγνητικού πεδίου και της γραμμής Hα. |
19 Apr 2011 | Tassos Fragos Harvard Smithsonian Center for Astrophysics | Understanding the Formation and Evolution of Black Hole X-ray Binaries. |
12 Apr 2011 | Nektarios Vlahakis University of Athens | Rarefaction acceleration in magnetized gamma-ray burst jets. |
5 Apr 2011 | Christos Tsagas University of Thessaloniki | Large-scale magnetic fields in cosmology. |
29 Mar 2011 | Nikolaos Tetradis University of Athens | Cosmological matter perturbations and the model of the Universe. |
22 Mar 2011 | Kostas Kokkotas University of Thessaloniki / University of Tuebingen | High Frequency Sources of Gravitational Waves: Recent Progress. |
15 Mar 2011 | Kostas Tziotziou Research Center for Astronomy and Applied Mathematics of the Academy of Athens | The Dynamic Solar Chromosphere: Recent Advances from High Resolution Telescopes |
8 Mar 2011 | Manolis K. Georgoulis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Automated Data Analysis for the Solar Dynamics Observatory Mission: RCAAM's participation. |
01 Mar 2011 | Prof. Elias C. Katsoufis | First year of operation of the accelerator L.H.C. and of the related experiments at C.E.R.N. |
22 Feb 2011 | Dr. P. K. Pavlakos University of Athens | Ergodic Theorems and Applications to Classical and Quantum Mechanics |
15 Feb 2011 | Dr. Konstantinos Anagnostopoulos National Technical University of Athens | Superstring Theory: A journey to a multidimensional universe with unified interactions |
8 Feb 2011 | Prof. Nikos E. Mavromatos King's College London/CERN | Quantum Gravity and the Dark Sector of the Universe |
1 Feb 2011 | Prof. Nick Kylafis University of Crete | Are Magnetars really Magnetars? |
25 Jan 2011 | Dr. Despina Hatzidimitriou University of Athens | Study of X-ray populations in local group galaxies with XMM-Newton. |
18 Jan 2011 | Dr. Constantinos Gontikakis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Study of the radiation scattering in the spectral lines at 1548A and 1550A, emitted by the carbon four (C IV) ion, from a solar micro flare. |
11 Jan 2011 | Dr. Padelis Papadopoulos Argelander-Institut fuer Astronomie, University of Bonn, Germany | Cosmic Rays and Interstellar Matter: New initial conditions for star formation in galaxies. |
21 Dec 2010 | Nikos Delis Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Quantum Perturbation Theory via Lie Series |
14 Dec 2010 | Sofia Carvalho Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Gravitational lensing of the cosmic microwave background |
7 Dec 2010 | P.A. Patsis & C. Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Dark Matter in Galaxies (A special seminar for Dark Matter Awareness Week DMAW2010) |
30 Nov 2010 | Elias C. Vagenas Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Information Loss Paradox: Is there a possible resolution? |
23 Nov 2010 | Adamantia Zampeli Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Hawking radiation via the Anomaly Cancellation Method. |
16 Nov 2010 | Ioannis Contopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Non-linear force-free reconstruction of the global solar magnetic field. |
9 Nov 2010 | Houshang Ardavan University of Cambridge | Superluminal Emission Processes in Laboratory and in Nature. |
2 Nov 2010 | Prof. Michael Tsamparlis University of Athens | Potentials admitting Lie and Noether symmetries. |
26 Oct 2010 | Christos Efthymiopoulos Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Wavepacket approach to electron diffraction through material targets. The Bohmian description and the problem of arrival times. |
19 Oct 2010 | Christos Efthymiopoulos | Density matrix approach and characterization of the quantum 'times of flight' in charged particle diffraction. |
8 Oct 2010 | Serge Koutchmy Directeur de recherche emeritus, CNRS & UPMC, France | Observations of the Solar Total Eclipse of July 11, 2010 to measure the solar diameter |
20 Jul 2010 |
Prof. Yu-Qing Lou
| Galactic Magnetohydrodynamic Density Waves and Supermassive Black Holes in Galactic Bulges. |
06 Jul 2010 |
P. Tsoutsis
| Τροχιακή και Δυναμική Μελέτη Γαλαξιακών Δυναμικών Συστημάτων. |
29 Jun 2010 |
Dr. A. Veronig
| On the dynamics and energetics of solar coronal mass ejections and flares. |
22 Jun 2010 | Elias C. Vagenas Research Center for Astronomy and Applied Mathematics of the Academy of Athens | Quantum Gravity Corrections and Entropy at the Planck time. |
15 Jun 2010 |
G. Lukes-Gerakopoulos
| Χάος στην Κλασική Μηχανική και τη Γενική Θεωρία της Σχετικότητας. |
11 Jun 2010 |
Dr. A. Vourlidas
| The sub-arcsecond Upper Chromosphere Throught Lya Eyes. |
08 Jun 2010 |
I. Stavropoulos
| Στατιστική κατανομή τροχιών σε αυτοσυνεπή βαρυτικά συστήματα. |
01 Jun 2010 |
Dr. C. Efthymiopoulos
| Διάχυση Arnold και θεωρία Nekhoroshev σε περιοχές διπλού συντονισμού. |
26 May 2010 |
Prof. A. Burkert
| The Dynamics of High-Redshift galaxies. |
11 May 2010 |
C. Dialynas
| Η μαγνητόσφαιρα του Κρόνου όπως αποκαλύπτεται από τις μετρήσεις του πειράματος Cassini/MIMI: Ανάλυση φασμάτων ενεργητικών ιόντων και απεικόνιση ΕΝΑ σε πλανητική κλίμακα. |
04 May 2010 |
Dr. A. Anastasiadis
| Particle Acceleration Processes in Solar Flares. |
27 Apr 2010 |
Prof. M. Tsamparlis
| Οι συμμετρίες Lie και Noether των δυναμικών συστημάτων και οι γεωμετρικές συμμετρίες του χώρου εξέλιξης. |
20 Apr 2010 |
Dr. O. Malandraki
| Aνάλυση και ερμηνεία μετρήσεων πλάσματος, σωματιδίων και μαγνητικού πεδίου από διαστημόπλοια των ESA και NASA. |
13 Apr 2010 |
Dr. N. Bakas
| Αλληλεπίδραση κυμάτων άνωσης-κυμάτων στροβιλότητας και ανάμειξη. |
23 Mar 2010 |
Prof. T. Kalvouridis
| Ένα απλο γεωμετρικο μοντελο πολλων σωματων: το δακτυλιοειδες προβλημα των Ν+1 σωματων. |
16 Mar 2010 |
Dr. A. Bonanos
| A Survey of the Most Massive Stars in the Local Universe. |
09 Mar 2010 |
Dr. M. Guzzo
| Quasi-periodic motions, resonances and diffusion in Hamiltonian Systems. |
02 Mar 2010 |
Dr. M.K. Georgoulis
| Ηλιακές εκρήξεις: η φυσική της χαμένης ισορροπίας. |
23 Feb 2010 |
Dr. G. Kastis
| Μέθοδοι Ανακατασκευής Ιατρικής Εικόνας. |
16 Feb 2010 |
Dr. E. Christodoulidi
| Δυναμική Χαμηλοδιάστατων Τόρων και Χάος σε Χαμιλτώνια Συστήματα Πολλών Βαθμών Ελευθερίας. |
09 Feb 2010 |
Prof. I.S. Nicolis
| Πολυπλοκότης και Δυναμική Λήψεως Αποφάσεων υπό Συνθήκες Αβεβαιότητος και Ανταγωνισμού (Θεωρία Παραδόξων Παιγνίων). |
01 Feb 2010 |
Prof. A. Zezas
| X-ray source populations and stellar populations in nearby galaxies. |
26 Jan 2010 |
Dr. I. Contopoulos
| MHD Accretion-Disk Winds as X-ray Absorbers in Active Galactic Nuclei. |
19 Jan 2010 |
Dr. S. Basilakos
| The Physical Properties of the Cosmic Acceleration. |
12 Jan 2010 |
Dr. Th. Sotiriou
| Might black holes reveal their inner secrets? |
07 Jan 2010 |
Dr. P. Papadopoulos
| The demise of the Schmidt-Kennicutt relation for the Early Universe. |
15 Dec 2009 |
Dr. C. Gontikakis
| Φασματική ανάλυση μίας μικροέκλαμψης. |
08 Dec 2009 |
Dr. L. van Driel-Gesztelyi
| Why are CMEs large-scale coronal events: nature or nurture? |
30 Nov 2009 |
Dr. V. Debattista
| Simulating the evolution of disk galaxies. |
24 Nov 2009 |
Prof. M. Vrahatis
| From the Poincar?-Miranda theorem to characteristic bisection method and computation of periodic orbits. |
17 Nov 2009 |
Dr. S. Kitsionas
| SPH simulations of gravoturbulent fragmentation and cloud-cloud collisions. |
10 Nov 2009 |
Dr. C. Efthymiopoulos
| Περίθλαση Ηλεκτρονίων και Μέτρηση Χρόνων Αφιξης στη Κβαντική Μηχανική Bohm. |
05 Nov 2009 |
Dr. M. Xilouris
| Aristarchos Telescope. |
27 Oct 2009 |
Dr. P. Grosbol
| Spiral Structure in Disk Galaxies as seen in the Near-Infrared. |
20 Oct 2009 |
Dr. P.A. Patsis
| Dynamical mechanisms behind barred-spiral structure in disk galaxies. |
13 Oct 2009 |
Prof. F. Combes
| Galaxy dynamics: secular evolution and hierarchical scenario. |
17 Sep 2009 |
Dr. D. Chakrabarty
| Inverse Modelling of Gravitational Potential of Galaxies using CHASSIS. |
22 Jun 2009 |
Dr. E. Vagenas
| Quantum Gravity Corrections and Entropy at the Planck time. |
16 Jun 2009 |
Dr. K. Fathi
| The Tremaine-Weinberg Method for Pattern Speeds Using Hα Emission from Ionized Gas. |
09 Jun 2009 |
Dr. I. Contopoulos
| Η τρισδιάστατη δομή της μαγνητόσφαιρας των pulsars.. |
02 Jun 2009 |
Dr. I.K. Kominis
| Πλεγματικά Σολιτόνια σε Πολύπλοκες Φωτονικές Δομές.. |
26 May 2009 |
Dr. I. Contopoulos
| Μαγνητικά πεδία σε ενεργούς γαλαξιακούς πυρήνες. |
12 May 2009 |
Dr. N. Sergis
| Το διαστημόπλοιο Cassini στον Κρόνο: Οι πιο πρόσφατες ανακαλύψεις. |
05 May 2009 |
Dr. C. Efthymiopoulos
| Μια Σύνοψη του Καθιερωμένου Προτύπου. |
28 Apr 2009 |
Dr. C.S. Carvalho
| How to fake : A General Class of Models for characterizing the Non-Gaussian CMB Foreground Contaminants. |
07 Apr 2009 |
Dr. P. Wallden
| Towards a Quantum Theory of closed systems: The co-event interpretation. |
31 Mar 2009 |
Dr. Th. Katsigiannis
| Η κάμερα του μακρινού υπεριώδους (EUV) στον δορυφόρο Proba2. |
24 Mar 2009 |
Dr. S. Gottloeber
| Constrained simulations of the local universe. |
17 Mar 2009 |
Prof. A. Nindos
| Ραδιοφωνική Εκπομπή από Ηλιακές Εκλάμψεις και Στεμματικές Εκτοξεύσεις Μάζας. |
10 Mar 2009 |
Prof. G. Dasios
| Semiseparation of variables and stokes flow. A generalized spectral theory of operators. |
03 Mar 2009 |
Prof. Th. Giannakopoulos
| Στοχαστικά συστήματα με σαγματικά σημεία, οπισθοδρομικές στοχαστικές διαφορικές εξισώσεις και εφαρμογές. |
24 Feb 2009 |
Prof. T. Bountis
| Order and Chaos in Multidimensional Hamiltonian Systems. |
17 Feb 2009 |
Dr. C. Gontikakis
| Μελέτη της δυναμικής των βρόχων του στέμματος. |
10 Feb 2009 |
Prof. D. Frantzeskakis
| Dark solitons in Bose-Einstein condensates. |
03 Feb 2009 |
Dr. M. Harsoula
| Study of the orbital structure of barred-spiral galaxies. |
27 Jan 2009 |
Dr. C. Gazeas
| Star formation and stellar populations in the spiral galaxy M81. |
20 Jan 2009 |
Dr. S. Basilakos
| An Introduction to Physical Cosmology. |
13 Jan 2009 |
Dr. M. Plionis
| Alternative Estimates of the Dark Energy Equation of State. |
16 Dec 2008 |
Prof. J.-C. Vial
| Some new UV imaging and spectroscopic results on filaments/prominences. |
09 Dec 2008 |
Dr. K. Tsiganis
| Recent Advances and New Challenges in Solar System Dynamics. |
02 Dec 2008 |
Dr. V. Archontis
| From MHD dynamos to dynamical solar events: achievements and perspectives. |
25 Nov 2008 |
Dr. C. Tsironis
| Nonlinear phenomena in electron-cyclotron heating and current drive in fusion plasmas. |
18 Nov 2008 |
Dr. C. Efthymiopoulos
| Low-dimensional tori and energy localization in Fermi-Pasta-Ulam Lattices. |
11 Nov 2008 |
Prof. A. Mignone
| Shock-Capturing Schemes in Computational Fluid Dynamics and the PLUTO Code. |
06 Nov 2008 |
Dr. M.K. Georgoulis
| Πρόγνωση του διαστημικού καιρού: πρόοδος και προκλήσεις. |
04 Nov 2008 |
Prof. A. Nezis
| Velocity Pattern Evolution in the Solar Photosphere. |
21 Oct 2008 |
Prof. L. Perivolaropoulos
| A Comparison of Dark Energy Probes. |
14 Oct 2008 |
Prof. D. Vlahos
| Ερευνητικές δραστηριότητες του εργαστηρίου επιστήμης του πανεπιστήμιου Πελοποννήσου. |
07 Oct 2008 |
Prof. A. Giorgilli
| Epicycles, secular inequalities and chaotic evolution in Celestial mechanics: a historical perspective. |
30 Sep 2008 |
Dr. A. Anastasiadis
| The Cross-Scale space mission |
25 Sep 2008 |
Dr. A. Vourlidas
| Seeing the Sun and Heliosphere with New Eyes: Recent Results from the SECCHI Telescopes Aboard the STEREO Mission. |
23 Sep 2008 |
Prof. G.P. Zank
| The Interaction of the Solar Wind with the Interstellar Medium |
17 Jun 2008 |
Prof. N. Kalogeropoulos
| Η εντροπική παράμετρος στη θερμοστατιστική του Τσάλλη και η Ν-Ricci καμπυλότητα |
10 Jun 2008 |
Prof. J.H. Seiradakis
| Μελέτη μεμονωμένων παλμών από αστέρες νετρονίων |
09 Jun 2008 |
Dr. D. Kazanas
| Cosmological Inflation and the Multiverse: Views of a Sceptic |
03 Jun 2008 |
G. Lukes-Gerakopoulos
| Δυναμική και χάος στην κοσμολογία Ενοποιημένου Βαθμωτού Πεδίου |
27 May 2008 |
Dr. Ν. Sergis
| Η μαγνητόσφαιρα του Κρόνου μέσα από τις μετρήσεις ενεργητικών ιόντων και ουδετέρων ατόμων. Πείραμα ΜΙΜΙ στο διαστημόπλοιο Cassini |
22 May 2008 |
Dr. C.S. Efstathiou
| Unstable attractors and heteroclinic cycles in pulse coupled networks with delay |
20 May 2008 |
Prof. N. Kylafis
| Οι μελανές οπές ως πηγές ακτίνων Χ |
19 May 2008 |
Dr. E. Koulouridis
| Η εξελικτική ακολουθία των ενεργών γαλαξιακών πυρήνων ως αποτέλεσμα των εγγύς γαλαξιακών αλληλεπιδράσεων. |
13 May 2008 |
Prof. S. Koutchmy
| Chromospheric Prolateness: Solar Cycle Variations and Fast Wind |
06 May 2008 |
Prof. F. Diacu
| Saari's Conjecture of Celestial Mechanics |
05 May 2008 |
Prof. I. S. Dandouras
| Πλανητικές μαγνητόσφαιρες και η μελέτη τους με την τεχνική των ενεργητικών ουδετέρων ατόμων |
15 Apr 2008 |
Dr. S. Basilakos
| Μια μαθηματική περιγραφή της φύσης της σκοτεινής ενέργειας και το τέλος της Κοσμολογίας |
08 Apr 2008 |
Dr. M. Sakellariadou
| Κοσμικές (Υπερ)χορδές |
01 Apr 2008 |
Dr. M. Plionis
| Η Ιεραρχική δημιουργία δομών στην Κοσμολογία ΛCDM: Σχήματα, δυναμική και εξέλιξη δομών |