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dc.contributor.authorKhan-Ali, A.
dc.contributor.authorCarrera, F.J.
dc.contributor.authorPage, M. J.
dc.contributor.authorStevens, J. A.
dc.contributor.authorMateos, S.
dc.contributor.authorSymeonidis, M.
dc.contributor.authorOrjales, J. M. Cao
dc.date.accessioned2015-09-28T14:28:50Z
dc.date.available2015-09-28T14:28:50Z
dc.date.issued2015-03-21
dc.identifier.citationKhan-Ali , A , Carrera , F J , Page , M J , Stevens , J A , Mateos , S , Symeonidis , M & Orjales , J M C 2015 , ' Submm-bright X-ray absorbed QSOs at z~2 : insights into the co-evolution of AGN and star-formation ' , Monthly Notices of the Royal Astronomical Society , vol. 448 , no. 1 , pp. 75-89 . https://doi.org/10.1093/mnras/stu2719
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 9226914
dc.identifier.otherPURE UUID: 1aaa8785-5051-4fd2-9471-6d82b6e65850
dc.identifier.otherArXiv: http://arxiv.org/abs/1501.02095v1
dc.identifier.otherScopus: 84982113928
dc.identifier.otherORCID: /0000-0002-4010-8310/work/62747617
dc.identifier.urihttp://hdl.handle.net/2299/16462
dc.descriptionDate of Acceptance: 22/12/2014
dc.description.abstractWe have assembled a sample of 5 X-ray-absorbed and submm-luminous type 1 QSOs at $z \sim 2$ which are simultaneously growing their central black holes through accretion and forming stars copiously. We present here the analysis of their rest-frame UV to submm Spectral Energy Distributions (SEDs), including new Herschel data. Both AGN (direct and reprocessed) and Star Formation (SF) emission are needed to model their SEDs. From the SEDs and their UV-optical spectra we have estimated the masses of their black holes $M_{BH}\sim 10^{9}-10^{10}\,M_{\odot}$, their intrinsic AGN bolometric luminosities $L_{BOL}\sim(0.8 - 20)\times 10^{13} L_{\odot}$, Eddington ratios $L_{BOL}/L_{Edd}\sim 0.1 - 1.1$ and bolometric corrections $L_{BOL}/L_{X,2-10}\sim 30 - 500$. These values are common among optically and X-ray-selected type 1 QSOs (except for RX~J1249), except for the bolometric corrections, which are higher. These objects show very high far-infrared luminosities $L_{FIR}\sim$ (2 - 8)$\times10^{12}\,M_{\odot}$ and Star Formation Rates SFR$\sim 1000 M_{\odot}/$y. From their $L_{FIR}$ and the shape of their FIR-submm emission we have estimated star-forming dust masses of $M_{DUST}\sim 10^9\,M_\odot$. We have found evidence of a tentative correlation between the gas column densities of the ionized absorbers detected in X-ray (N$_{H_{ion}}$) and $SFR$. Our computed black hole masses are amongst the most massive known.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectastro-ph.GA
dc.titleSubmm-bright X-ray absorbed QSOs at z~2 : insights into the co-evolution of AGN and star-formationen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2015-03-21
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stu2719
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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