Distortions of the microwave background radiation spectrum in the submillimeter wavelength region.
Abstract
Previous calculations of distortions of the microwave background spectrum are reviewed, and it is shown that the linear approximation of the Comptondistorted radiation spectrum fails seriously in the submillimeter range. The Zel'dovich, Illarionov, and Sunyaev (1972) approximation is shown to be a better analytical approximation in the limiting case when the matter temperature is much higher than the initial radiation temperature. This approximation is modified by setting the two temperatures at an equal value and is used to estimate the amplitude of the Compton effect. A chisquared test is performed on possible combinations of the initial radiation temperature and amplitude of the Compton effect allowed by observed values of the present radiation temperatures in the microwave region.
 Publication:

The Astrophysical Journal
 Pub Date:
 June 1975
 DOI:
 10.1086/153600
 Bibcode:
 1975ApJ...198..245C
 Keywords:

 Background Radiation;
 Brightness Temperature;
 Compton Effect;
 Microwave Spectra;
 Submillimeter Waves;
 Astronomical Models;
 Microwave Scattering;
 Numerical Analysis;
 Perturbation Theory;
 Radio Astronomy;
 Space Radiation