The gravitational light shift and the Sachs-Wolfe effect

Autor:	Merlin, Cesar, Salgado, Marcelo
Rok vydání:	2011
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Extragalactic Astrophysics High Energy Physics - Theory
Zdroj:	Gen.Rel.Grav.43:2701-2712,2011
Druh dokumentu:	Working Paper
DOI:	10.1007/s10714-011-1193-7
Popis:	Using a 3+1 decomposition of spacetime, we derive a new formula to compute the gravitational light shifts as measured by two observers which are normal to the spacelike hypersurfaces defining the foliation. This formula is quite general and is also independent of the existence of Killing fields. Known examples are considered to illustrate the usefulness of the formula. In particular, we focus on the Sachs-Wolfe effect that arises in a perturbed Friedman-Robertson-Walker cosmology. Comment: 8 pages; accepted for publication in General Relativity and Gravitation
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1105.0459 Zobrazit plný text záznamu View this record from Arxiv