首页 | 本学科首页   官方微博 | 高级检索  
     


Polarization of Cosmic Microwave Backgdound Scattered by Moving Flat Protoobjects
Authors:N. N. Shakhvorostova  S. I. Grachev  V. K. Dubrovich
Affiliation:(1) Astro-Space Center, Lebedev's Physical Institute, Moscow, Russia;(2) Sobolev Astronomical Institute, Saint-Petersburg State University, Saint-Petersburg, Russia;(3) Saint-Petersburg Department, Special Astrophysical Observatory, Saint-Petersburg, Russia
Abstract:The work is devoted to the investigations of possible observational manifestations of protoobjects related to the ldquodark agesrdquo epoch (10 < z < 1000), before formation of self-luminous galaxies and stars. These objects can distort the cosmic microwave background. Formation of these objects is described in the ldquopancake theoryrdquo and in the model of ldquohierarchic clustering.rdquo According to these theories we may consider these protoobjects as flat layers. We consider both Thomson (with Rayleigh phase matrix) and resonance (for complete frequency redistribution) scattering of cosmic microwave background radiation by a moving flat layer. The resulting anisotropy and polarization of cosmic microwave radiation are calculated for a wide range of layer optical thickness (from an optically thin layer to an optically thick one). Analytical solutions are also obtained for the case of an optically thin layer and are compared with the numerical ones.
Keywords:Cosmology  Cosmic microwave background scattering  cosmology theory
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号