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1 results

  • 16 - Late thermalization of starlight

  • from Part IV - Moderate unorthodoxies: The CMB with the Big Bang
  • Slobodan Perovic, University of Belgrade, Milan M. Cirkovic, Astronomical Observatory of Belgrade, Serbia
  • Book:
    The Cosmic Microwave Background
    Published online:
    09 July 2024
    Print publication:
    27 June 2024, pp 98-100

  • Summary

    N. C. Rana’s explanation, the focus of this chapter, is probably the most radical among the moderate alternative explanations of the CMB. It does not rely on the thermalization of Population III objects’ radiation, but on the thermalization of “normal” starlight at redshifts between 10 and 5. This explanation required strong starburst at these epochs and adequate cosmic dust to thermalize their radiation. A specialist on the latter, Rana modeled elongated metallic dust grains twice in order to achieve sufficient values of thermalization. His explanation avoided both the “horizon problem” and the isotropy problem (as isotropy of matter distribution implies isotropy of light distribution). His rather general model understandably underestimated the influence of small-angular scale fluctuations measured by COBE.