BAL phosphorus abundance and evidence for immense ionic column densities in quasar outflows: vlt/x-shooter observations of quasar SDSS J1512+1119

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dc.contributorVirginia Techen
dc.contributor.authorBorguet, Benoit C. J.en
dc.contributor.authorEdmonds, Douglasen
dc.contributor.authorArav, Nahumen
dc.contributor.authorBenn, C.en
dc.contributor.authorChamberlain, Carteren
dc.contributor.departmentPhysicsen
dc.date.accessed2014-02-05en
dc.date.accessioned2014-02-25T13:57:02Zen
dc.date.available2014-02-25T13:57:02Zen
dc.date.issued2012-10en
dc.description.abstractWe present spectroscopic analysis of the broad absorption line (BAL) outflow in quasar SDSS J1512+1119. In particular, we focus our attention on a kinematic component in which we identify P V and S IV/S IV* absorption troughs. The shape of the unblended phosphorus doublet troughs and the three S IV/S IV* troughs allow us to obtain reliable column density measurements for these two ions. Photoionization modeling using these column densities and those of He I* constrain the abundance of phosphorus to the range of 0.5-4 times the solar value. The total column density, ionization parameter, and metallicity inferred from the P V and S IV column densities lead to large optical depth values for the common transition observed in BAL outflows. We show that the true C IV optical depth is similar to 1000 times greater in the core of the absorption profile than the value deduced from its apparent optical depth.en
dc.description.sponsorshipNASA STScI GO 11686, GO 12022en
dc.description.sponsorshipNSF AST 0837880en
dc.identifier.citationBenoit C. J. Borguet et al. 2012. "BAL phosphorus abundance and evidence for immense ionic column densities in quasar outflows: vlt/x-shooter observations of quasar SDSS J1512+1119," ApJ 758 69 doi:10.1088/0004-637X/758/1/69en
dc.identifier.doihttps://doi.org/10.1088/0004-637x/758/1/69en
dc.identifier.issn0004-637Xen
dc.identifier.urihttp://hdl.handle.net/10919/25534en
dc.identifier.urlhttp://m.iopscience.iop.org/0004-637X/758/1/69/pdf/0004-637X_758_1_69.pdfen
dc.language.isoen_USen
dc.publisherIOP Publishing Ltd.en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectgalaxies: individual (sdss j1512+1119)en
dc.subjectline: formationen
dc.subjectquasars:en
dc.subjectabsorption linesen
dc.subjectspace-telescope observationsen
dc.subjectgalactic nucleus outflowsen
dc.subjectabsorption-lineen
dc.subjectquasarsen
dc.subjectkeck hires observationsen
dc.subjectc-iv absorptionen
dc.subjectintrinsic absorptionen
dc.subjectmetal abundancesen
dc.subjectultraviolet-absorptionen
dc.subjectchemical abundancesen
dc.subjectstisen
dc.subjectobservationsen
dc.titleBAL phosphorus abundance and evidence for immense ionic column densities in quasar outflows: vlt/x-shooter observations of quasar SDSS J1512+1119en
dc.title.serialAstrophysical Journalen
dc.typeArticle - Refereeden

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