Inverse-Compton scattering of the cosmic infrared background

The thermal Sunyaev-Zel'dovich (tSZ) effect is the distortion generated in cosmic microwave background (CMB) spectrum by inverse-Compton scattering of CMB photons off free, energetic electrons, primarily located intracluster medium. Cosmic infrared (CIB) from dust emission star-forming galaxies are expected to undergo same process. In this work, we perform first calculation resulting tSZ-like CIB. Focusing on CIB monopole, use a halo model approach calculate both signal and Compton-$y$ field that generates distortion. We self-consistently account for redshift coevolution fields: they (partially) sourced dark matter halos, which introduces new aspects as compared case. find monopole has positive (negative) peak amplitude $\ensuremath{\approx}4\text{ }\text{ }\mathrm{Jy}/\mathrm{sr}$ ($\ensuremath{\approx}\ensuremath{-}5\text{ }\mathrm{Jy}/\mathrm{sr}$) at 2260 GHz (940 GHz). contrast usual tSZ effect, two null frequencies, approximately 196 1490 GHz. Fisher matrix forecast detectability future experiments. PIXIE would have sufficient instrumental sensitivity detect $4\ensuremath{\sigma}$, but foreground contamination reduces projected signal-to-noise factor $\ensuremath{\approx}70$. A ESA Voyage 2050 spectrometer could $\ensuremath{\approx}5\ensuremath{\sigma}$ significance, even after marginalizing over foregrounds. measurement provide information star formation history Universe, anisotropies may be accessible near-future ground-based