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  • 1965-1969  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Fluctuations in the Microwave Background Radiation (1969)
    [s.l.] : Nature Publishing Group
    Nature 223 (1969), S. 719-721 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There are two important stages in the theory of formation of large-scale systems. One is to do with red-shifts at which radiation pressure is dominant, the second after recombination of the primaeval plasma when perturbations can grow according to the law (8 p/ p)oc (1 + Z)-1 (refs. 4-6) for ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/223719a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Distortions of the Background Radiation Spectrum (1969)
    [s.l.] : Nature Publishing Group
    Nature 223 (1969), S. 721-722 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] But if departures from the equilibrium spectrum were discovered, what would their meaning be ? We believe that one need not abandon the hot, big-bang theory. There are natural processes which can lead to pronounced distortions of the spectrum, both in the low-frequency (Rayleigh-Jeans) and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/223721a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The interaction of matter and radiation in a hot-model universe (1969)
    Springer
    Astrophysics and space science 4 (1969), S. 301-316 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this paper we continue the investigation initiated by Weymann as to the reason why the spectrum of the residual radiation deviates from a Planck curve. We shall consider the distortions of the spectrum resulting from radiation during the recombination of a primeval plasma. Analytical expressions are obtained for the deviation from an equilibrium spectrum due to Compton scattering by hot electrons. On the basis of the observational data it is concluded that a period of neutral hydrogen in the evolution of the universe is unavoidable. It is shown that any injection of energy att〉1010 sec (red shiftz〈105) leads to deviation from an equilibrium spectrum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00661821
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    Paper (German National Licenses)
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