Search for Global Metric Anisotropy in Type Ia Supernova Data

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dc.creatorJain, Pankaj
dc.creatorModgil, Moninder S.
dc.creatorRalston, John P.
dc.date2005-10-28
dc.date2007-03-02
dc.date.accessioned2026-07-07T11:03:54Z
dc.date.available2026-07-07T11:03:54Z
dc.descriptionWe examine the Type 1a supernova data in order to determine if it shows any signal of large scale anisotropy. The anisotropy is modelled by an extended Gödel metric, which incorporates expansion along with rotation. The model is smoothly connected to the usual FRW type, while expressing anisotropic metric effects depending on certain parameters. We find no significant signal of anisotropy in the data. We obtain bounds on an anisotropic redshift versus magnitude relationship, and accompanying parameters of the Gödel-Obukhov metric.
dc.description16 pages, 2 figures, minor changes, to be published in Modern Physics Letters A
dc.identifierhttps://arxiv.org/abs/astro-ph/0510803
dc.identifierhttp://arxiv.org/abs/astro-ph/0510803
dc.identifierMod.Phys.Lett.A22:1153-1165,2007
dc.identifierdoi:10.1142/S0217732307023389
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188709
dc.subjectAstrophysics
dc.titleSearch for Global Metric Anisotropy in Type Ia Supernova Data
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