Brillouin scattering and the CMB
arXiv:astro-ph/0105323 · doi:10.1007/s10714-005-0096-x
Abstract
Brillouin scattering of photons off the density fluctuations in a fluid is potentially important for cosmology. We derive the Brillouin spectral distortion of blackbody radiation, and discuss the possible implications for the cosmic microwave background. The thermal Sunyaev-Zeldovich effect is slightly modified by Brillouin distortion, but only at very long wavelengths.
4 pages Revtex, 2 figs. Minor changes to improve clarity; version to appear in GRG