The Rees-Sciama effect is the microwave temperature shift produced by time-dependent gravitational potentials in nonlinear structure. A photon gains energy entering a potential well and loses it leaving; the shifts do not cancel when the well changes during transit. To leading order in its effect on the photon spectrum, this is a frequency-independent thermodynamic temperature shift, unlike the thermal Sunyaev-Zeldovich effect. A nonlinear potential can evolve even during matter domination, when linear growing-mode potentials are constant.

Ancestors (10)

  1. Integrated Sachs-Wolfe effect
  2. Sachs-Wolfe combination
  3. Photon monopole
  4. Photon temperature multipole
  5. Cosmic microwave background anisotropy
  6. Cosmic microwave background
  7. Cosmology
  8. Branches of physics
  9. Physics
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