Multiwavelength campaign on Mrk 509 XI. Reverberation of the Fe K alpha line

dc.contributorVirginia Techen
dc.contributor.authorPonti, G.en
dc.contributor.authorCappi, M.en
dc.contributor.authorCostantini, E.en
dc.contributor.authorBianchi, S.en
dc.contributor.authorKaastra, J. S.en
dc.contributor.authorDe Marco, B.en
dc.contributor.authorFender, R. P.en
dc.contributor.authorPetrucci, P. O.en
dc.contributor.authorKriss, G. A.en
dc.contributor.authorSteenbrugge, K. C.en
dc.contributor.authorArav, Nahumen
dc.contributor.authorBehar, E.en
dc.contributor.authorBranduardi-Raymont, G.en
dc.contributor.authorDadina, M.en
dc.contributor.authorEbrero, J.en
dc.contributor.authorLubinski, P.en
dc.contributor.authorMehdipour, M.en
dc.contributor.authorPaltani, S.en
dc.contributor.authorPinto, C.en
dc.contributor.authorTombesi, F.en
dc.description.abstractContext. We report on a detailed study of the Fe K emission/absorption complex in the nearby, bright Seyfert 1 galaxy Mrk 509. The study is part of an extensive XMM-Newton monitoring consisting of 10 pointings (~60 ks each) about once every 4 days, and includes a reanalysis of previous XMM-Newton and Chandra observations. Aims. We aim at understanding the origin and location of the Fe K emission and absorption regions. Results. Mrk 509 shows a clear (EW = 58 ± 4 eV) neutral Fe Kα emission line that can be decomposed into a narrow (σ = 0.027 keV) component (found in the Chandra HETG data) plus a resolved (σ = 0.22 keV) component. We find the first successful measurement of a linear correlation between the intensity of the resolved line component and the 3–10 keV flux variations on time scales of years down to a few days. The Fe Kα reverberates the hard X-ray continuum without any measurable lag, suggesting that the region producing the resolved Fe Kα component is located within a few light days to a week (r ≲ 103rg) from the black hole (BH). The lack of a redshifted wing in the line poses a lower limit of  ≥40 rg for its distance from the BH. The Fe Kα could thus be emitted from the inner regions of the BLR, i.e. within the  ~80 light days indicated by the Hβ line measurements. In addition to these two neutral Fe Kα components, we confirm the detection of weak (EW ~ 8–20 eV) ionised Fe K emission. This ionised line can be modelled with either a blend of two narrow Fe xxv and Fe xxvi emission lines (possibly produced by scattering from distant material) or with a single relativistic line produced, in an ionised disc, down to a few rg from the BH. In the latter interpretation, the presence of an ionised standard α-disc, down to a few rg, is consistent with the source high Eddington ratio. Finally, we observe a weakening/disappearing of the medium- and high-velocity high-ionisation Fe K wind features found in previous XMM-Newton observations. Conclusions. This campaign has made the first reverberation measurement of the resolved component of the Fe Kα line possible, from which we can infer a location for the bulk of its emission at a distance of r ~ 40–1000 rg from the BH.en
dc.description.sponsorshipESA Member Statesen
dc.description.sponsorshipUSA (NASA)en
dc.description.sponsorshipEU Marie Curie Intra-European Fellowship FP7-PEOPLE-2009-IEF-254279en
dc.description.sponsorshipNWO, the Netherlands Organisation for Scientific Researchen
dc.description.sponsorshipFrench GDR PCHEen
dc.description.sponsorshipASI-INAF I/088/06/0en
dc.description.sponsorshipNASA/XMM-Newton Guest Investigator grant NNX09AR01Gen
dc.description.sponsorshipNASA through the Space Telescope Science Institute 12022en
dc.description.sponsorshipNASA NAS5-26555en
dc.description.sponsorshipPolish MNiSW N N203 581240, 362/1/N-INTEGRAL/2008/09/0en
dc.description.sponsorshipUK Science & Technology Facilities Council (STFC)en
dc.description.sponsorshipComite Mixto ESO - Gobierno de Chileen
dc.identifier.citationPonti, G. ; Cappi, M. ; Costantini, E. ; et al., Jan. 2013. “Multiwavelength campaign on Mrk 509 XI. Reverberation of the Fe K alpha line,” ASTRONOMY & ASTROPHYSICS 549:A72. DOI: 10.1051/0004-6361/201219450en
dc.publisherEDP Sciencesen
dc.rightsIn Copyrighten
dc.subjectaccretion disksen
dc.subjectblack hole physicsen
dc.subjectmethods: data analysisen
dc.subjectgalaxies: individual: Mrk 509en
dc.subjectgalaxies: active: galaxies: Seyferten
dc.subjectactive galactic nucleien
dc.subjectx-ray reverberationen
dc.subjectblack-hole massen
dc.subjectseyfert 1en
dc.subjectbroad iron linesen
dc.subjectwarm absorbersen
dc.subjectaccretion disksen
dc.subjectAstronomy & Astrophysicsen
dc.titleMultiwavelength campaign on Mrk 509 XI. Reverberation of the Fe K alpha lineen
dc.title.serialAstronomy & Astrophysicsen
dc.typeArticle - Refereeden


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