The Sachs-Wolfe effect
Received 19 September 1996 / Accepted 18 October 1996
We present a pedagogical derivation of the Sachs-Wolfe effect, specifically the factor 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.
Key words: cosmic microwave background cosmology: theory
© European Southern Observatory (ESO) 1997
Online publication: June 30, 1998