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dc.contributor.authorPage, M.J.
dc.contributor.authorCarrera, F.J.
dc.contributor.authorStevens, J. A.
dc.date.accessioned2011-02-28T14:14:03Z
dc.date.available2011-02-28T14:14:03Z
dc.date.issued2010
dc.identifier.citationPage , M J , Carrera , F J & Stevens , J A 2010 , QSO winds and galaxy evolution . in AIP Conference Proceedings Volume 1248: X-Ray Astronomy 2009; Present Status, Multiwavelength Approach and Future Perspectives : Proceedings of the International Conference . American Institute of Physics , pp. 391-394 . https://doi.org/10.1063/1.3475264
dc.identifier.isbn978-0-7354-0795-4
dc.identifier.otherPURE: 177639
dc.identifier.otherPURE UUID: 3010108e-4d5b-48f8-bb9c-7df52f75b196
dc.identifier.otherdspace: 2299/5409
dc.identifier.otherScopus: 77955795691
dc.identifier.otherORCID: /0000-0002-4010-8310/work/62747559
dc.identifier.urihttp://hdl.handle.net/2299/5409
dc.descriptionCopyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. Original paper can be found at: http://proceedings.aip.org/
dc.description.abstractThere exists a population of broad-line z~2 QSOs which have heavily absorbed X-ray spectra. These objects constitute ~10% of the population at luminosities and redshifts characteristic of the main producers of QSO luminosity in the Universe. Our follow up observations in the submm show that these QSOs are often embedded in ultraluminous starburst galaxies, unlike most unabsorbed QSOs at the same redshifts and luminosities. The radically different star formation properties between the absorbed and unabsorbed QSOs implies that the X-ray absorption is unrelated to the torus invoked in AGN unification schemes. Instead, these results suggest that the objects represent a transitional phase in an evolutionary sequence relating massive black holes and the formation of galaxies. The most puzzling question about these objects has always been the nature of the X-ray absorber. We present our study of the X-ray absorbers based on deep (50–100 ks) XMM-Newton spectroscopy. We show that the absorption is most likely due to a dense ionised wind driven by the QSO. This wind could be the mechanism by which the QSO terminates the star formation in the host galaxy, and ends the supply of accretion material, to produce the present day black hole/spheroid mass ratio.en
dc.language.isoeng
dc.publisherAmerican Institute of Physics
dc.relation.ispartofAIP Conference Proceedings Volume 1248: X-Ray Astronomy 2009; Present Status, Multiwavelength Approach and Future Perspectives : Proceedings of the International Conference
dc.subjectX-ray spectroscopy
dc.subjectredshift
dc.subjectbrightness
dc.subjectstar formation
dc.titleQSO winds and galaxy evolutionen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
rioxxterms.versionofrecordhttps://doi.org/10.1063/1.3475264
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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