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dc.contributor.authorBuisson, Douglasen
dc.contributor.authorLohfink, AMen
dc.contributor.authorAlston, Williamen
dc.contributor.authorCackett, EMen
dc.contributor.authorChiang, CYen
dc.contributor.authorDauser, Ten
dc.contributor.authorDe Marco, Ben
dc.contributor.authorFabian, ACen
dc.contributor.authorGallo, LCen
dc.contributor.authorGarcía, JAen
dc.contributor.authorJiang, Jiachenen
dc.contributor.authorKara, Een
dc.contributor.authorMiddleton, MJen
dc.contributor.authorMiniutti, Gen
dc.contributor.authorParker, MLen
dc.contributor.authorPinto, Ciroen
dc.contributor.authorUttley, Pen
dc.contributor.authorWalton, Dominicen
dc.contributor.authorWilkins, DRen
dc.date.accessioned2018-01-12T13:04:59Z
dc.date.available2018-01-12T13:04:59Z
dc.date.issued2018-04-01en
dc.identifier.issn0035-8711
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/270537
dc.description.abstractWe present results from the optical, ultraviolet and X-ray monitoring of the NLS1 galaxy IRAS 13224-3809 taken with Swift and XMM-Newton during 2016. IRAS 13224-3809 is the most variable bright AGN in the X-ray sky and shows strong X-ray reflection, implying that the X-rays strongly illuminate the inner disc. Therefore, it is a good candidate to study the relationship between coronal X-ray and disc UV emission. However, we find no correlation between the X-ray and UV flux over the available ~40 day monitoring, despite the presence of strong X-ray variability and the variable part of the UV spectrum being consistent with irradiation of a standard thin disc. This means either that the X-ray flux which irradiates the UV emitting outer disc does not correlate with the X-ray flux in our line of sight and/or that another process drives the majority of the UV variability. The former case may be due to changes in coronal geometry, absorption or scattering between the corona and the disc.
dc.publisherOUP
dc.titleIs there a UV/X-ray connection in IRAS 13224-3809?en
dc.typeArticle
prism.endingPage2313
prism.issueIdentifier2en
prism.publicationDate2018en
prism.publicationNameMonthly Notices of the Royal Astronomical Societyen
prism.startingPage2306
prism.volume475en
dc.identifier.doi10.17863/CAM.17436
dcterms.dateAccepted2017-12-22en
rioxxterms.versionofrecord10.1093/mnras/sty008en
rioxxterms.versionAM*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-04-01en
dc.contributor.orcidAlston, William [0000-0003-2658-6559]
dc.contributor.orcidJiang, Jiachen [0000-0002-9639-4352]
dc.contributor.orcidPinto, Ciro [0000-0003-2532-7379]
dc.contributor.orcidWalton, Dominic [0000-0001-5819-3552]
dc.identifier.eissn1365-2966
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idSTFC (1637922)
pubs.funder-project-idEuropean Research Council (340442)
rioxxterms.freetoread.startdate2019-01-05


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