Does Bose-Einstein condensation of CMB photons cancel μ distortions created by dissipation of sound waves in the early Universe?

Details Does Bose-Einstein condensation of CMB photons cancel μ distortions created by dissipation of sound waves in the early Universe? Does Bose-Einstein condensation of CMB photons cancel μ distortions created by dissipation of sound waves in the early Universe?

2011-10-03

arxiv.org/abs/1110.0475v3

A&A 540 (2012) A124

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Published version

Scientific paper

10.1051/0004-6361/201118194

The difference in the adiabatic indices of photons and non-relativistic baryonic matter in the early Universe causes the electron temperature to be slightly lower than the radiation temperature. Thermalization of photons with a colder plasma results in the accumulation of photons in the Rayleigh-Jeans tail, aided by stimulated recoil, while the higher frequency spectrum tries to approach Planck spectrum at the electron temperature $T_{\gamma}^{final}=\Te

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