CMB ANISOTROPY AND POLARIZATION MEASUREMENTS WITH RATAN-600
| Autor: | Pavel D. Naselsky, I. D. Novikov, P. Tcibulev, Yu. Parijskij |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
Cold dark matter Cosmic microwave background Astrophysics::Instrumentation and Methods for Astrophysics Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Cosmological model Astrophysics Polarization (waves) symbols.namesake Space and Planetary Science Observatory symbols Planck Anisotropy Multipole expansion Mathematical Physics |
| Zdroj: | International Journal of Modern Physics D. :581-605 |
| ISSN: | 1793-6594 0218-2718 |
| Popis: | Some aspects of the Cosmological Gene project and the possibilities of the measurements of the Cosmic Microwave Background (CMB) anisotropy and polarization using the radio-telescope RATAN-600 (Special Astrophysical Observatory) are discussed. We study different strategies of the measurements and present main parameters of the antenna beam for these strategies at the frequency diapason ν=1–30 GHz. We simulate Cosmological Gene observations using a standard Cold Dark Matter cosmological model. We quantify the distortions of the primordial CMB-signal in the RATAN-600 scans by the atmosphere emission, foreground and noise in RATAN-600 scans. We emphasize that RATAN-600 is the unique instrument which allows the investigation of anisotropy and polarization of the CMB and investigate foreground and noise up to the multipole numbers l ∝ 105. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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