Peculiar velocity and deaberration of the sky
Peculiar velocity and deaberration of the sky
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
peculiar velocity, temperature distribution, doppler effect, earth, maps, the sun
7-9
Menzies, Dylan
0cc76abc-8a10-4b7f-96e5-56eceb0b2c5c
Mathews, G.J.
ac407235-f805-492b-b8c9-d98cb0ebe660
May 2005
Menzies, Dylan
0cc76abc-8a10-4b7f-96e5-56eceb0b2c5c
Mathews, G.J.
ac407235-f805-492b-b8c9-d98cb0ebe660
Menzies, Dylan and Mathews, G.J.
(2005)
Peculiar velocity and deaberration of the sky.
The Astrophysical Journal, 624 (1), .
(doi:10.1086/428936).
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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Accepted/In Press date: 18 January 2005
Published date: May 2005
Keywords:
peculiar velocity, temperature distribution, doppler effect, earth, maps, the sun
Organisations:
Acoustics Group
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Local EPrints ID: 371712
URI: http://eprints.soton.ac.uk/id/eprint/371712
ISSN: 0004-637X
PURE UUID: 47254eff-d63c-416e-95c8-c94b1b4aefdb
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Date deposited: 27 Jul 2015 09:11
Last modified: 14 Mar 2024 18:24
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Author:
G.J. Mathews
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