Blackness of the cosmic microwave background spectrum as a probe of the distance-duality relation

Jan, 2013
6 pages
Published in:
  • Phys.Rev.D 87 (2013) 10, 103530
  • Published: May 31, 2013
e-Print:

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Abstract: (APS)
A violation of the reciprocity relation, which induces a violation of the distance-duality relation, reflects itself in a change in the normalization of the cosmic microwave spectrum in such a way that its spectrum is grey. We show that existing observational constraints imply that the reciprocity relation cannot be violated by more than 0.01% between decoupling and today. We compare this effect to other sources of violation of the distance-duality relations which induce spectral distortion of the cosmic microwave background spectrum.
Note:
  • 5 pages, 2 figures, references added, minor typos corrected
  • 04.80.Cc
  • 98.80.Cq
  • duality
  • cosmic background radiation: power spectrum
  • cosmological model
  • statistical analysis
  • black body