2009/02/28 by Julien Larena, J. Larena · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Relativity and Gravitational Theory #astro-ph.CO #gr-qc
paper · pdf · doi:10.1103/physrevd.79.084006
published as Phys.Rev.D79:084006,2009 · 8 pages, no figure. Replaced to match the version published in Phys. Rev. D
openalex publication_date 2009/04/06 · arxiv created 2009/04/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper presents a general averaging procedure for a set of observers which are tilted with respect to the cosmological matter fluid. After giving the full set of equations describing the local dynamics, we define the averaging procedure and apply it to the scalar parts of Einstein's field equations. In addition to the standard backreaction, new terms appear that account for the effect of the peculiar velocity of the matter fluid as well as the possible effect of a shift in the coordinate system.