The Sachs-Wolfe effect.
Abstract
We present a pedagogical derivation of the Sachs-Wolfe effect, specifically the factor 1/3 relating the temperature fluctuations to gravitational potentials. The result arises from a cancellation between gravitational redshifts and intrinsic temperature fluctuations which can be derived from a coordinate transformation of the background.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- May 1997
- DOI:
- 10.48550/arXiv.astro-ph/9609105
- arXiv:
- arXiv:astro-ph/9609105
- Bibcode:
- 1997A&A...321....8W
- Keywords:
-
- COSMIC MICROWAVE BACKGROUND;
- COSMOLOGY: THEORY;
- Astrophysics
- E-Print:
- 2 pages, LaTeX uses laa.sty, no figures. Submitted to Astronomy &