Other
Scientific paper
May 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976mnras.175..429d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 175, May 1976, p. 429-447. Research supported by the National Research
Other
68
Astronomical Models, Background Radiation, Black Body Radiation, Density Distribution, Gravitational Effects, Temperature Distribution, Universe, Big Bang Cosmology, Bremsstrahlung, Compton Effect, Red Shift, Temperature Profiles
Scientific paper
The gravitational effect of density concentrations in the universe on the temperature distribution of the cosmic blackbody background radiation is considered, using the Swiss cheese model universe, and supposing each hole to contain an expanding, homogeneous dust sphere at its center. The temperature profile across such a hole differs in an essential way from that obtained earlier by Rees and Sciama. The evolution of this effect with the expansion of the universe is considered for 'relatively increasing' density contrasts emerging from the same initial singular state as the rest of the universe. This effect becomes comparable to the bremsstrahlung and Compton effects on the isotropy of the background radiation for masses of about 10 to the 19th power solar masses, and exceeds these other effects as about the 2/3 power of M for larger masses.
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