SMARTS OPTICAL AND INFRARED MONITORING OF 12 GAMMA-RAY BRIGHT BLAZARS

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dc.citation.firstpage13en_US
dc.citation.journalTitleThe Astrophysical Journalen_US
dc.citation.lastpage29en_US
dc.citation.volumeNumber756en_US
dc.contributor.authorBonning, Erinen_US
dc.contributor.authorUrry, C. Meganen_US
dc.contributor.authorBailyn, Charlesen_US
dc.contributor.authorBuxton, Michelleen_US
dc.contributor.authorChatterjee, Ritabanen_US
dc.contributor.authorCoppi, Paoloen_US
dc.contributor.authorFossati, Giovannien_US
dc.contributor.authorIsler, Jedidahen_US
dc.contributor.authorMaraschi, Lauraen_US
dc.contributor.publisherThe American Astronomical Societyen_US
dc.date.accessioned2013-03-13T19:04:55Zen_US
dc.date.available2014-03-19T05:10:03Zen_US
dc.date.issued2012en_US
dc.description.abstractWe present multiwavelength data for 12 blazars observed from 2008 to 2010 as part of an ongoing optical–infrared photometric monitoring project. Sources were selected to be bright, southern (δ < 20◦) blazars observed by the Fermi Gamma-Ray Space Telescope. Light curves are presented for the 12 blazars in BVRJK at near-daily cadence. We find that optical and infrared fluxes are well correlated in all sources. Gamma-ray bright flat spectrum radio quasars (FSRQs) in our sample have optical/infrared emission correlated with gamma-rays consistent with inverse Compton-scattering models. In FSRQs, variability amplitude increases toward IR wavelengths, consistent with the presence of a thermal accretion disk varying on significantly longer timescales than the jet. In BL Lac objects, variability is mainly constant, or increases toward shorter wavelength. FSRQs have redder optical–infrared colors when they are brighter,whileBLLac objects showno such trend. Several objects showcomplicated color–magnitude behavior: AO 0235+164 appears in two different states depending on its gamma-ray intensity. OJ 287 and 3C 279 show some hysteresis tracks in their color–magnitude diagrams. Individual flares may be achromatic or otherwise depart from the trend, suggesting different jet components becoming important at different times. We present a time-dependent spectral energy distribution of the bright FSRQ 3C 454.3 during its 2009 December flare, which is well fit by an external Compton model in the bright state, although day-to-day changes pose challenges to a simple one-zone model. All data from the SMARTS monitoring program are publicly available on our Web site.en_US
dc.embargo.terms1 yearen_US
dc.identifier.citationBonning, Erin, Urry, C. Megan, Bailyn, Charles, et al.. "SMARTS OPTICAL AND INFRARED MONITORING OF 12 GAMMA-RAY BRIGHT BLAZARS." <i>The Astrophysical Journal,</i> 756, (2012) 13-29. http://dx.doi.org/10.1088/0004-637X/756/1/13.en_US
dc.identifier.doihttp://dx.doi.org/10.1088/0004-637X/756/1/13en_US
dc.identifier.urihttps://hdl.handle.net/1911/70567en_US
dc.language.isoengen_US
dc.subject.keywordblack hole physics – BL Lacertae objectsen_US
dc.subject.keywordgeneral – galaxiesen_US
dc.subject.keywordactive – galaxiesen_US
dc.subject.keywordjets – quasarsen_US
dc.subject.keywordgeneralen_US
dc.titleSMARTS OPTICAL AND INFRARED MONITORING OF 12 GAMMA-RAY BRIGHT BLAZARSen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
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