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.
Original language | English |
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Pages (from-to) | 1137-1143 |
Journal | General Relativity and Gravitation |
Volume | 37 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2005 |
Keywords
- hydrodynamical fluid
- cosmic microwave background