New Gamma-Ray Probe of the Baryonic Dark Matter
| Autor: | A. F. Iyudin, Jochen Greiner, Stefan Larsson, Vadim Burwitz, G. Dicocco |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Physics
Hot dark matter Astrophysics::High Energy Astrophysical Phenomena Dark matter Dwarf galaxy problem Astrophysics (astro-ph) Scalar field dark matter Astronomy FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Galaxy Dark matter halo Baryonic dark matter Galaxy group Astrophysics::Galaxy Astrophysics |
| Zdroj: | NASA Astrophysics Data System |
| DOI: | 10.48550/arxiv.astro-ph/0501039 |
| Popis: | We expand on the recently reported detections of the gamma-ray resonant absorption along the line of sight toward gamma-ray bright quasars (QSOs), like 3C279. We propose to use this novel gamma-ray absorption method to study the Dark Matter distribution in the Milky Way, as well as in the Local Group. Properties of the absorber that was detected on the sight lines towards gamma-ray bright QSOs at zero redshift are discussed. We compare our results with the expected Dark Matter distributions in the halo of Milky Way, that were simulated in boundaries of different CDM models. Application of this new method to study evolution of CDM in the QSO host galaxies, and of baryons distribution in the halo of galaxies in the Local Universe is proposed. Comment: 4 pages, 1 figure, submitted to Proceedings of the Conference "Baryons in Dark Matter Halo", 05-09 October, 2004, Novigrad, Croatia, Eds. R-J. Dettmar, U. Klein, P. Salucci, PoS, SISSA, http://pos.sissa.it |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|