Modeling the Images of Relativistic Jets Lensed by Galaxies with Different Mass Surface Density Distributions

Autor:	Larchenkova, T. I., Lutovinov, A. A., Lyskova, N. S.
Rok vydání:	2011
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
DOI:	10.1134/S1063773711040050
Popis:	The images of relativistic jets from extragalactic sources produced by gravitational lensing by galaxies with different mass surface density distributions are modeled. In particular, the following models of the gravitational lens mass distribution are considered: a singular isothermal ellipsoid, an isothermal ellipsoid with a core, two- and three-component models with a galactic disk, halo, and bulge. The modeled images are compared both between themselves and with available observations. Different sets of parameters are shown to exist for the gravitationally lensed system B0218+357 in multicomponent models. These sets allow the observed geometry of the system and the intensity ratio of the compact core images to be obtained, but they lead to a significant variety in the Hubble constant determined from the modeling results. Comment: 26 pages, 9 figures, will be published in the Astronomy Letters, 2011, v.37, N4, pp. 233-247
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1103.2092 Zobrazit plný text záznamu View this record from Arxiv