POLARIZATION IN HOT AND COLD SPOTS IN CMB FLUCTUATIONS

Citation
Mv. Sazhin et Av. Toporenskii, POLARIZATION IN HOT AND COLD SPOTS IN CMB FLUCTUATIONS, Astronomy letters, 22(6), 1996, pp. 791-796
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
10637737
Volume
22
Issue
6
Year of publication
1996
Pages
791 - 796
Database
ISI
SICI code
1063-7737(1996)22:6<791:PIHACS>2.0.ZU;2-C
Abstract
A model of a spot in the cosmic microwave background (CMB) anisotropy produced by a scalar perturbation with Gaussian spectrum is considered . The level of polarization in the spot is calculated for various para meters of the perturbation and its orientation with respect to the obs erver. The CMB polarization near the spot center is higher than the sk y average on the same angular scale, as many times as the maximum of t he delta T/T fluctuations is higher than the sky average. The accuracy of modern instrumentation for observations gives us hope that a speci ally-designed observational program can detect polarization of the CMB perturbation in spots of size less than or similar to 1 degrees.