The effect of spherical voids on the microwave background radiation

Details The effect of spherical voids on the microwave background radiation The effect of spherical voids on the microwave background radiation

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...313..517t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 313, Feb. 15, 1987, p. 517-522.

Astronomy and Astrophysics

Astrophysics

52

Gravitational Effects, Relic Radiation, Universe, Voids, Astronomical Models, Cosmic Dust, Cosmology, Photons, Red Shift

Scientific paper

An analytical model of a void, at an intermediate epoch between recombination and the present, is studied, and its gravitational influence on photons passing through it is considered. The background universe is a flat Friedmann-Robertson-Walker cosmology with dust. The deviation of redshift for the photons as a function of impact parameter is calculated to lowest order. This is used to approximate the cosmic background radiation anisotropy expected of a universe filled with such voids. The temperature fluctuation with voids the size of that in Bootes is of the order 10 to the -6th. This is about two orders of magnitude lower than present published limits.

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