Work

Gauges and cosmological backreaction

Year: 2009

Type: article

Abstract: We present a formalism for spatial averaging in cosmology applicable to general spacetimes and coordinates, and allowing the easy incorporation of a wide variety of matter sources. We apply this formalism to a Friedmann-Lemaȋtre-Robertson-Walker universe perturbed to second-order and present the corrections to the background in an unfixed gauge. We then present the corrections that arise in uniform curvature and conformal Newtonian gauges.

Source: Journal of Cosmology and Astroparticle Physics

DOI: 10.1088/1475-7516/2009/11/027

Authors: Iain A Brown, Juliane Behrend, Karim A Malik

Institutions: Heidelberg University, Universität Ulm, Queen Mary University of London

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W1990509904

FWCI: 2.871

Cites: 40

Cited by: 34

Related to: 10