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Type: Artigo de periódico
Title: Variation in the luminosity of Kerr quasars due to an extra dimension in the brane Randall-Sundrum model
Author: da Rocha, R
Coimbra-Araujo, CH
Abstract: We propose an alternative theoretical approach showing how the existence of an extra dimension in the Randall-Sundrum model can be used to estimate the correction in the horizon of Schwarzschild and Kerr black holes, and consequently its measurability in terms of the variation of quasar luminosity, which can be caused by an imprint of an extra dimension endowing the geometry of the brane-world scenario to the AdS(5) bulk. The rotation effects cause a more prominent correction in Kerr horizon radii than in the Schwarzschild (static black hole) radius, via brane-world effects, and the consequent bigger variation in the luminosity in Kerr black hole quasars. This paper is intended to investigate the variation of luminosity due to the accretion of gas in Schwarzschild and Kerr black holes (BHs) in the centres of quasars, besides also investigating the variation of luminosity in supermassive BHs arising from brane-world effects, using the Randall-Sundrum model.
Subject: extra dimensions
massive black holes
Country: Inglaterra
Editor: Iop Publishing Ltd
Citation: Journal Of Cosmology And Astroparticle Physics. Iop Publishing Ltd, n. 12, 2005.
Rights: fechado
Identifier DOI: 10.1088/1475-7516/2005/12/009
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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