Galactic rotation curves and brane world models

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dc.creatorRahaman, F.
dc.creatorKalam, M.
dc.creatorDeBenedictis, A.
dc.creatorUsmani, A. A.
dc.creatorRay, Saibal
dc.date2008-02-24
dc.date2008-06-14
dc.date.accessioned2026-07-07T10:16:10Z
dc.date.available2026-07-07T10:16:10Z
dc.descriptionIn the present investigation flat rotational curves of the galaxies are considered under the framework of brane-world models where the 4d effective Einstein equation has extra terms which arise from the embedding of the 3-brane in the $5d$ bulk. It has been shown here that these long range bulk gravitational degrees of freedom can act as a mechanism to yield the observed galactic rotation curves without the need for dark matter. The present model has the advantage that the observed rotation curves result solely from well-established non-local effects of gravitation, such as dark radiation and dark pressure under a direct use of the condition of flat rotation curves and does not invoke any exotic matter field.
dc.description7 Latex pages, 7 figures; Edited substantially with new figures and references; Accepted for Mon. Not. R. Astron. Soc
dc.identifierhttps://arxiv.org/abs/0802.3453
dc.identifierhttp://arxiv.org/abs/0802.3453
dc.identifierMon.Not.Roy.Astron.Soc.389:27,2008
dc.identifierdoi:10.1111/j.1365-2966.2008.13559.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173414
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleGalactic rotation curves and brane world models
dc.typetext

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