Microlensing variability in time-delay quasars

Simple item page
dc.creatorParaficz, D.
dc.creatorHjorth, J.
dc.creatorBurud, I.
dc.creatorJakobsson, P.
dc.creatorEliasdottir, A.
dc.date2006-07-07
dc.date.accessioned2026-07-07T07:15:36Z
dc.date.available2026-07-07T07:15:36Z
dc.descriptionWe have searched for microlensing variability in the light curves of five gravitationally lensed quasars with well-determined time delays: SBS 1520+530, FBQ 0951+2635, RX J0911+0551, B1600+434 and HE 2149-2745. By comparing the light curve of the leading image with a suitably time offset light curve of a trailing image we find that two (SBS 1520+530 and FBQ 0951+2635) out of the five quasars have significant long-term (years) and short-term (100 days) brightness variations that may be attributed to microlensing.The short-term variations may be due to nanolenses, relativistic hot or cold spots in the quasar accretion disks, or coherent microlensing at large optical depth.
dc.description12 pages, 5 figures, uses natbib.sty and aa.cls
dc.identifierhttps://arxiv.org/abs/astro-ph/0607133
dc.identifierhttp://arxiv.org/abs/astro-ph/0607133
dc.identifierAstron.Astrophys. 455 (2006) L1-L4
dc.identifierdoi:10.1051/0004-6361:20065502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113275
dc.subjectAstrophysics
dc.titleMicrolensing variability in time-delay quasars
dc.typetext

Files

Collections

arXiv