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Title:		The velocity of clusters of galaxies relative to the microwave background - The possibility of its measurement
Authors:		SUNIAEV, R. A.; ZELDOVICH, IA. B.
Affiliation:		AB(Akademiia Nauk SSSR, Institut Kosmicheskikh Issledovanii, Moscow, USSR)
Journal:		Royal Astronomical Society, Monthly Notices, vol. 190, Feb. 1980, p. 413-420.
Publication Date:		02/1980
Category:		Astronomy
Origin:		STI
NASA/STI Keywords:		BACKGROUND RADIATION, GALACTIC CLUSTERS, MICROWAVE EMISSION, POLARIZED RADIATION, VELOCITY MEASUREMENT, BACKGROUND NOISE, COSMIC GASES, COSMOLOGY
Bibliographic Code:		1980MNRAS.190..413S

Abstract

Measuring the peculiar velocities (PVs) of clusters of galaxies relative to the microwave background radiation is examined. The radial component of the PV is discussed, considering the changing radiation intensity and temperature. Emphasis is given to the possibility of finding the tangential component of the PV by observing the microwave background polarization of the scattered radiation: scattering on a single electron, the effect of finite optical depth, and other sources of polarization are considered.

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