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Orbital signatures from observed light curves of blazars

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dc.contributor.author Mangalam, A
dc.contributor.author Mohan, Prashanth
dc.date.accessioned 2014-04-10T09:36:55Z
dc.date.available 2014-04-10T09:36:55Z
dc.date.issued 2014-04
dc.identifier.citation Journal of Astrophysics and Astronomy, (Submitted) en
dc.identifier.issn 0250-6335
dc.identifier.uri http://hdl.handle.net/2248/6587
dc.description Open Access en
dc.description.abstract Variability in active galactic nuclei is observed in ultraviolet to X-ray emission based light curves. This could be attributed to orbital signatures of the plasma that constitutes the accretion flow on the putative disk or in the developing jet close to the inner region of the central black hole. We discuss some theoretical models which build on this view. These models include general relativistic effects such as light bending, aberration effects, gravitational and Doppler redshifts. The novel aspects relate to the treatment of helical flow in cylindrical and conical geometries in the vicinity of a Schwarzschild black hole that leads to amplitude and frequency modulations of simulated light curves as well as the inclusion of beaming effects in these idealized geometries. We then present a suite of time series analysis techniques applicable to data with varied properties which can extract detailed information from them for their use in theoretical models. en
dc.language.iso en en
dc.publisher Indian Academy of Sciences en
dc.relation.uri http://arxiv.org/abs/1404.0527 en
dc.rights © Indian Academy of Sciences en
dc.subject Astrophysics - High Energy Astrophysical Phenomena en
dc.subject Astrophysics - Astrophysics of Galaxies en
dc.title Orbital signatures from observed light curves of blazars en
dc.type Article en


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