A Synoptic, Multiwavelength Analysis of a Large Quasar Sample

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dc.creatorRengstorf, Adam W.
dc.creatorBrunner, Robert J.
dc.creatorWilhite, Brian C.
dc.date2005-12-19
dc.date.accessioned2026-07-07T11:25:06Z
dc.date.available2026-07-07T11:25:06Z
dc.descriptionWe present variability and multi-wavelength photometric information for the 933 known quasars in the QUEST Variability Survey. These quasars are grouped into variable and non-variable populations based on measured variability confidence levels. In a time-limited synoptic survey, we detect an anti-correlation between redshift and the likelihood of variability. Our comparison of variability likelihood to radio, IR, and X-ray data is consistent with earlier quasar studies. Using already-known quasars as a template, we introduce a light curve morphology algorithm that provides an efficient method for discriminating variable quasars from periodic variable objects in the absence of spectroscopic information. The establishment of statistically robust trends and efficient, non-spectroscopic selection algorithms will aid in quasar identification and categorization in upcoming massive synoptic surveys. Finally, we report on three interesting variable quasars, including variability confirmation of the BL Lac candidate PKS 1222+037.
dc.descriptionAJ, accepted for publication 15 Dec 2005
dc.identifierhttps://arxiv.org/abs/astro-ph/0512476
dc.identifierhttp://arxiv.org/abs/astro-ph/0512476
dc.identifierAstron.J.131:1923-1933,2006
dc.identifierdoi:10.1086/500585
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195407
dc.subjectAstrophysics
dc.titleA Synoptic, Multiwavelength Analysis of a Large Quasar Sample
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