1110.0475 (Rishi Khatri et al.)

Does Bose-Einstein condensation of CMB photons cancel μdistortions created by dissipation of sound waves in the early Universe?    [PDF]

Rishi Khatri, Rashid A. Sunyaev, Jens Chluba

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}=\TeView original: http://arxiv.org/abs/1110.0475