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Peculiar Velocity and Deaberration of the Sky

2004/09/30 by D. Menzies, G. J. Mathews · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #COSMIC cancer database #Cosmic background radiation #Cosmic microwave background #Cosmology and Gravitation Theories #Dark matter #Galaxies: Formation, Evolution, Phenomena #Peculiar velocity #Sky #astro-ph

paper · pdf · doi:10.1086/428936

published as Astrophys.J. 624 (2005) 7-9 · 8 pages, 1 figure, v4 accepted by ApJ

arxiv created 2005/01/18 · openalex publication_date 2005/04/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Recent studies have found the earth's peculiar velocity to be significant in microwave-background-based tests for compact cosmic topology, and modifications to these tests have been proposed. Tests of non-Gaussianity, weak-lensing analysis, and new tests using improved cosmic microwave background (CMB) data will also be sensitive to peculiar velocity. We propose here to simplify matters by showing how to construct a deaberrated CMB map to which any test requiring a Hubble flow view point can be applied without further complication. In a similar manner, deaberration can also be applied to object surveys used, for example, in topological searches and matter distribution analysis. In particular, we have produced a revised list of objects with z > 1.0 using the NASA/IPAC Extragalactic Database.

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