Events

SEMINAR
Tuesday 21 May 2013

Panos Patsis
Research Center for Astronomy and Applied Mathematics of the Academy of Athens

Backbones of stellar barred-spiral morphologies

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In Press...

The Speed of Arnold Diffusion
Christos Efthymiopoulos, Mirella Harsoula
(to appear in Physica D)

Magnetic Energy and Helicity Budgets in the Active-Region Solar Corona. II. Nonlinear Force-Free Approximation
M. K. Georgoulis, K. Tziotziou, N.-E. Raouafi

The Magnetic Energy - Helicity Diagram of Solar Active Regions
Kostas Tziotziou, Manolis K. Georgoulis, Nour-Eddine Raouafi

Non-neutralized Electric Current Patterns in Solar Active Regions: Origin of the Shear-Generating Lorentz Force
Manolis K. Georgoulis, Viacheslav S. Titov, Zoran Mikic

The structure of phase space close to fixed points in a 4D symplectic map
L. Zachilas, M. Katsanikas, P. A. Patsis

A generalized growth index parametrization: Applications to the LamdaCDM using the WiggleZ growth data
Basilakos, S.

Order in de Broglie - Bohm Quantum Mechanics
Contopoulos, G., Delis, N., and Efthymiopoulos, C.
(To appear in J. Phys. A.: Math. Theor. pp 1-23)

On Our Ability to Predict Major Solar Flares
Georgoulis, M.K.
(To appear in Astroph. Space Sci. Proc. V. N. Obridko, K. Georgieva, Yu. A. Nagovitsyn, Eds.)

A Consistent Comparison of Bias Models using Observational Data
A. Papageorgiou, M. Plionis, S. Basilakos, C. Ragone-Figueroa
To appear in MNRAS

Instabilities and stickiness in a 3D rotating galactic potential
M. Katsanikas, P.A. Patsis and G. Contopoulos
(to appear in IJBC)

Quantum Vortices and Trajectories in Particle Diffraction
N. Delis, C. Efthymiopoulos and G. Contopoulos
(to appear in an IJBC Special Issue edited by G. Nicolis, M. Robnik, V. Rothos and H. Skokos)

Dynamics and Constraints of the Massive Gravitons Dark Matter Flat Cosmologies
Basilakos, S., Plionis, M., Alves, M. E. S. and Lima, J. A. S.

Using the Noether symmetry approach to probe the nature of dark energy
Basilakos, S., Tsamparlis, M. and Paliathanasis, A.

Hubble expansion and structure formation in the "running FLRW model" of the cosmic evolution
Grande J., Sola, J., Basilakos S. and Plionis M.

Orbits in a non-Kerr Dynamical System
Contopoulos G., Lukes-Gerakopoulos G. and Apostolatos T.A.
(to appear in IJBC Special Issue edited by G. Nicolis, M. Robnik, V. Rothos and H. Skokos)

Structures out of Chaos in barred-spiral galaxies
Patsis P. A.
(Review paper to be published in IJBC)

Dynamical Mechanisms supporting Barred-Spiral Structures
Patsis P. A.
(AApTr 2012, 27, 113)

Chains of rotational tori and filamentary structures close to high multiplicity periodic orbits in a 3D galactic potential
Katsanikas, M., Patsis P. A. and Pinotsis A.
(IJBC, in press)

The structure and evolution of confined tori near a Hamiltonian Hopf Bifurcation
Katsanikas, M., Patsis P. A. and Contopoulos G.
(IJBC, in press)

The Generalized Uncertainty Principle and Quantum Gravity Phenomenology
Farag Ali, A., Das, S., Vagenas, E.C.
(Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity - World Scientific - in press)

News & Announcements

Personnel

	Supervisor
	Academician Prof. George Contopoulos Tel. (+30) 210 6597601 Email: gcontop@academyofathens.gr

	Acting Director	Research on
	Panos A. Patsis Research Director Tel. (+30) 210 6597169 Email: patsis@academyofathens.gr	Galactic Dynamics, Galactic Morphology, SPH-Hydrodynamics, Near Infrared Observations of Disk Galaxies, Nonlinear Dynamics, Chaos

	Researchers	Research on
	Christos Efthymiopoulos Research Director Tel. (+30) 210 6597513 Email: cefthim@academyofathens.gr	Hamiltonian perturbation theory, Analytical & numerical methods in nonlinear dynamical systems, Galactic Dynamics - Celestial Mechanics, Dynamical systems in quantum mechanics and field theory, Systems of many degrees of freedom.
	Ioannis Contopoulos Senior Researcher Tel. (+30) 210 6597167 Email: icontop@academyofathens.gr	Magnetohydrodynamics
	Spyros Basilakos Senior Researcher Tel. (+30) 210 6597248 Email: svasil@academyofathens.gr	Nature of Dark Energy and the Accelerating Universe Geometry and topology of the distribution of matter in the Universe. Cosmological tests of General Relativity. Classical and quantum cosmology of scalar fields.
	Constantinos Gontikakis Senior Researcher Tel. (+30) 210 6597246 Email: cgontik@academyofathens.gr	Solar Physics, Particles Acceleration, Solar Flares, Spectroscopy
	Elias Vagenas Senior Researcher Tel. (+30) 210 6597646 Email: evagenas@academyofathens.gr	General Relativity, Black Hole Physics, Cosmology, Quantum Gravity
	Manolis Georgoulis Associate Researcher Tel. (+30) 210 6597103 Email: manolis.georgoulis@academyofathens.gr	Solar and Heliospheric Physics, Nonlinear Dynamics and Self Organization Space Weather
	Mirella Harsoula Researcher Tel. (+30) 210 6597157 Email: mharsoul@academyofathens.gr	Galactic Dynamics, Hamiltonian Dynamics, Nonlinear Phenomena

	Post-doctoral Fellows	Research on
	Sofia Carvalho	Cosmology
	Matthaios Katsanikas Tel. (+30) 210 6597147 Email: mkatsan@academyofathens.gr	Chaos and Hamiltonian Dynamical Systems with applications in Physics and Astronomy.
	Kostas Tziotziou Tel. (+30) 210 6597139 Email: kostas@noa.gr	Solar Physics

	Scientific Collaborators	Research on
	Vassilis Tritakis Research Director Emeritus Former Acting Director Tel. (+30) 210 6597507 Email: vas@academyofathens.gr	Sun Earth Connection
	Eleni Dara Research Director Emeritus Former Director Tel. (+30) 210 65975139 Email: edara@academyofathens.gr	Solar Physics
	Theodosis Zachariadis Research Director Emeritus Tel. (+30) 210 6597143 Email: tzachar@academyofathens.gr	Solar Physics

	Administration & Technical	Working on
	Georgia Aggelopoulou Tel. (+30) 210 6597648 Email: gaggelop@academyofathens.gr	Administration
	Manolis Zoulias Tel. (+30) 210 6597511 Email: mzoulias@academyofathens.gr	IT, Networking, Web Development, Public Outreach

	PhD Students	Research on
	Giorgos Anastasiou Tel. (+30) 210 6597147 Email: ganastasiou@outlook.com	Aspects of Bigravity: Black Holes & Cosmology
	Nikos Delis Tel. (+30) 210 6597147 Email: delnikle@gmail.com	Stochasticity in Nonlinear Dynamical Systems
	Athina Pouri Tel. (+30) 210 6597147 Email: ath.pouri@gmail.com	Measurement of the Expansion Rate of the Universe by means of Extragalactic High Energy Sources
	Petros Syntelis Tel. (+30) 210 6597147 Email: psyntelis@gmail.com
	Liana Tsigaridi Tel. (+30) 210 6597147 Email: liana@academyofathens.gr	Nonlinear Phenomena in Response Models of Galactic Disks

	Past Collaborators	Research on
	Sotiris Chatzopoulos	Automatic Classification of Orbits
	George Lukes-Gerakopoulos	Chaos in Classical Mechanics and in General Theory of Relativity Succesfully presented his thesis on 23 Jun 2010.
	Constantinos Kalapotharakos	Galactic Dynamics, Chaos
	Ioanna Patsou	Eruptive Activity and Heating of Solar Active Regions

	Ioannis Stavropoulos	Chaos in N-body Galactic Models Succesfully presented his thesis on 10 Dec 2010.
	Panagiotis Tsoutsis	Orbits and Waves Investigation of Gravitational Systems Succesfully presented his thesis on 2 Nov 2010.