THE BROADBAND SPECTRAL VARIABILITY OF MCG-6-30-15 OBSERVED BY <i>NUSTAR</i> AND <i>XMM-NEWTON</i>

dc.contributor.authorMarinucci, A.
dc.contributor.authorMatt, G.
dc.contributor.authorMiniutti, G.
dc.contributor.authorGuainazzi, M.
dc.contributor.authorParker, M. L.
dc.contributor.authorBrenneman, L.
dc.contributor.authorFabian, A. C.
dc.contributor.authorKara, E.
dc.contributor.authorArevalo, P.
dc.contributor.authorBallantyne, D. R.
dc.contributor.authorBoggs, S. E.
dc.contributor.authorCappi, M.
dc.contributor.authorChristensen, F. E.
dc.contributor.authorCraig, W. W.
dc.contributor.authorElvis, M.
dc.contributor.authorHailey, C. J.
dc.contributor.authorHarrison, F. A.
dc.contributor.authorReynolds, C. S.
dc.contributor.authorRisaliti, G.
dc.contributor.authorStern, D. K.
dc.contributor.authorWalton, D. J.
dc.contributor.authorZhang, W.
dc.date.accessioned2025-01-23T21:46:05Z
dc.date.available2025-01-23T21:46:05Z
dc.date.issued2014
dc.description.abstractMCG-6-30-15, at a distance of 37 Mpc (z = 0.008), is the archetypical Seyfert 1 galaxy showing very broad Fe K alpha emission. We present results from a joint NuSTAR and XMM-Newton observational campaign that, for the first time, allows a sensitive, time-resolved spectral analysis from 0.35 keV up to 80 keV. The strong variability of the source is best explained in terms of intrinsic X-ray flux variations and in the context of the light-bending model: the primary, variable emission is reprocessed by the accretion disk, which produces secondary, less variable, reflected emission. The broad Fe K alpha profile is, as usual for this source, well explained by relativistic effects occurring in the innermost regions of the accretion disk around a rapidly rotating black hole. We also discuss the alternative model in which the broadening of the Fe K alpha is due to the complex nature of the circumnuclear absorbing structure. Even if this model cannot be ruled out, it is disfavored on statistical grounds. We also detected an occultation event likely caused by broad-line region clouds crossing the line of sight.
dc.fuente.origenWOS
dc.identifier.doi10.1088/0004-637X/787/1/83
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.1088/0004-637X/787/1/83
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101721
dc.identifier.wosidWOS:000335924200083
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.subjectaccretion, accretion disks
dc.subjectgalaxies: active
dc.subjectgalaxies: Seyfert
dc.subjectX-rays: individual (MCG-6-30-015)
dc.titleTHE BROADBAND SPECTRAL VARIABILITY OF MCG-6-30-15 OBSERVED BY <i>NUSTAR</i> AND <i>XMM-NEWTON</i>
dc.typeartículo
dc.volumen787
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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