On a possible nonequilibrium imprint in the cosmic background at low frequencies. (arXiv:1908.08876v4 [astro-ph.CO] UPDATED)
On a possible nonequilibrium imprint in the cosmic background at low frequencies. (arXiv:1908.08876v4 [astro-ph.CO] UPDATED) <a href="http://arxiv.org/find/astro-ph/1/au:+Baiesi_M/0/1/0/all/0/1">Marco Baiesi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burigana_C/0/1/0/all/0/1">Carlo Burigana</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Conti_L/0/1/0/all/0/1">Livia Conti</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Falasco_G/0/1/0/all/0/1">Gianmaria Falasco</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Maes_C/0/1/0/all/0/1">Christian Maes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rondoni_L/0/1/0/all/0/1">Lamberto Rondoni</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Trombetti_T/0/1/0/all/0/1">Tiziana Trombetti</a> The cosmic background radiation has been observed to deviate from the Planck law expected from a blackbody at $sim$ 2.7 K at frequencies below $sim 3$ GHz. We discuss the abundance of the low-energy photons from the perspective of nonequilibrium statistical mechanics. We propose a mechanism of stochastic frequency-diffusion, the counterpart to stochastic acceleration for charged particles in a turbulent plasma, to modify the standard Kompaneets equation. The resultingRead More →