Brillouin scattering and the CMB

A Sandoval-Villalbazo, R Maartens

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Pages (from-to)1137-1143
JournalGeneral Relativity and Gravitation
Issue number6
Publication statusPublished - Jun 2005


  • hydrodynamical fluid
  • cosmic microwave background


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