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dc.contributor.authorWillott, C.J.
dc.contributor.authorMcLure, R.J.
dc.contributor.authorJarvis, M.J.
dc.date.accessioned2007-07-25T15:41:28Z
dc.date.available2007-07-25T15:41:28Z
dc.date.issued2003
dc.identifier.citationWillott , C J , McLure , R J & Jarvis , M J 2003 , ' A 3 x 10 solar mass black hole in the quasar SDSS J1148+5251 at z=6.41 ' , The Astrophysical Journal , vol. 587 , pp. L15-L18 .
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 178427
dc.identifier.otherPURE UUID: a18902b6-368f-466a-93d7-fcb34c785511
dc.identifier.otherdspace: 2299/302
dc.identifier.urihttp://hdl.handle.net/2299/302
dc.descriptionOriginal article can be found at: http://www.journals.uchicago.edu/ApJ/ Copyright American Astronomical Society
dc.description.abstractWe present near-infrared H- and K-band spectra of the z p 6.41 quasar SDSS J114816.64 525150.3. The spectrum reveals a broad Mg ii l2799 emission line with an FWHM of 6000 km s 1. From the peak wavelength of this emission line, we obtain a more accurate redshift than is possible from the published optical spectrum and determine a redshift of z p 6.41 0.01. If the true peak of the Lya emission is at the same redshift, then a large fraction of the flux blueward of the peak is absorbed. The equivalent width of the Mg ii emission line is similar to that of lower redshift quasars, suggesting that the UV continuum is not dominated by a beamed component. Making basic assumptions about the line-emitting gas, we derive a mass estimate of M, 3#109 for the central black hole in this quasar. The very high luminosity of the quasar shows that it is accreting at the maximal allowable rate for a black hole of this mass, adopting the Eddington limit criterion.en
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.rightsOpen
dc.titleA 3 x 10 solar mass black hole in the quasar SDSS J1148+5251 at z=6.41en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted2003
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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