EAS SYMPOSIUM 7: Cosmology: NEW FACTS and NEW problems

20-22 August 2007

Contact: Hayk Harutyunyan (Armenia)

Last decades' cosmology put forward many new problems. Hubble constant's numerical value decrease in 80s and further gradual increase can not be explained as a result of observational methods improvement only but also some changes in the ideology took place. Revealing of the Hubble flow for a few Mpc scales is dictating new demands: where is the lower scale limit? New challenges brought the discovery of accelerated expansion phenomenon: is the fifth fundamental force discovered ultimately? Discovery of mature galaxies at high redshifts puts a lot of new questions. The same questions come from the high metallicity abundances revealed for high redshift QSOs. Problems are not resolved yet with very obvious cases of low and high redshift objects physical association: are there anomal redshift objects at our cosmological epoch? The main goal of this symposium is exposing the observational facts with existing interpretations.

SOC

Andreas Burkert (Germany, TBC), Arthur Chernin (Russia), Marek Demianski (Poland, TBC), Mike Disney (UK, TBC), Jaan Einasto (Estonia, TBC), Hayk Harutyunyan (Armenia, Chair), Igor Karachentsev (Russia), Paolo Salucci (Italy), Joseph Silk (UK), Simon White (Germany, TBC).

Topics:

- Hubble constant: ups and downs
- Hubble flows for all scales
- Accelerated expansion: is it only for a certain period?
- Mature objects while the Universe was young
- Element abundances
- Oemler-Butcher effect

Program

Monday, August 20, 2007

11:00-11:40       Vahé Petrosian: Gamma-Ray Bursts and Cosmology (invited) 

11:40-12:00       Leonid Chechin: The Evolution of a Baryonic Matter Perturbations’ in the Early Universe Described by Nonstationary Equation of State  

12:00-12:15       Goverdhan Khadekar: Five Dimensional Cosmological Model with Variable Cosmological Term L and a Big Bounce        

12:15-12:30       Goverdhan Khadekar: String Cosmological Model with Bulk Viscosity in Higher Dimensional Space Time

12:30-14:00       Lunch break

14:00-14:30       Patrick Berghaus, IceCube team: Status and Results from AMANDA/IceCube 

14:30-14:50       Ajay Sharma: The Basis of Generalized Equation E = Ac²M, its Application in Various Physical Phenomena

14:50-15:10       Ara Avetissian: A New Theoretical Model of Big-Bang Evidence as a Consequence of Global Symmetry Breakdown    

15:10-15:30       Mohamad Reza Tanhayi: Conformal Gravity in De Sitter Universe

15:30-16:00       Coffee break

16:00-16:30       Haik Harutyunian: On the Nature of cD Galaxies: Some Musings on their Role in the Cluster Formation Process (invited) 

16:30-16:50       Piotr FLIN: Recent Dynamical Evolution of Galaxy Clusters?

16:50-17:10       Evanthia Hatziminaoglou, on behalf of the SPIRE SAG1 Team: The Herschel Multi-Tiered Extragalactic Survey (HerMES)

17:10-17:30       Ganna Ivashchenko: Luminosity Dependence of the Quasar Clustering from SDSS DR5

17:30-17:50       Stefano Andreon: Color Bimodality, Role of the Environment, Mass Assembly and Star Formation History of Galaxies in Clusters of Galaxies, up to z>1

17:50-18:10       Sepehr ARBABI BIDGOLI: A Comparative Study of Void Searching Algorithms

18:10-18:40       Poster Session and General Discussion

POSTERS

S7-P01. B. Ali Aslhashemy: Study of Conformal Invariance in Kaluza-Klein Cosmology

S7-P02. Sofik Iskudarian: New Approaches in Astrophysics Gave the Birth of Astroparticle Physics

S7-P03. Elena Panko: An Orientation of Rich Clusters and the Brightest Cluster Members for MRSS Clusters    

S7-P04. Dario Trevese, M. Castellano, S. Salimbeni, A. Fontana, E. Giallongo: High Redshift Photometrically Selected Clusters of Galaxies   

S7-P05. Zhiqiang Zhang: Introduction to Feeding Back Theory of the Universe