10 kpc Scale Seyfert Galaxy Outflow: HST/COS Observations of IRAS F22456-5125

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dc.contributorVirginia Techen
dc.contributor.authorBorguet, Benoit C. J.en
dc.contributor.authorEdmonds, Douglasen
dc.contributor.authorArav, Nahumen
dc.contributor.authorDunn, Jayen
dc.contributor.authorKriss, Gerard A.en
dc.contributor.departmentPhysicsen
dc.date.accessed2014-02-05en
dc.date.accessioned2014-02-25T13:57:02Zen
dc.date.available2014-02-25T13:57:02Zen
dc.date.issued2012-06en
dc.description.abstractWe present analysis of the UV spectrum of the low-z AGN IRAS F22456-5125 obtained with the Cosmic Origins Spectrograph on board the Hubble Space Telescope. The spectrum reveals six main kinematic components, spanning a range of velocities of up to 800 km s (1), which for the first time are observed in troughs associated with C II, C IV, N V, Si II, Si III, Si IV, and S IV. We also obtain data on the O VI troughs, which we compare to those available from an earlier Far Ultraviolet Spectroscopic Explorer epoch. Column densities measured from these ions allow us to derive a well-constrained photoionization solution for each outflow component. Two of these kinematic components show troughs associated with transitions from excited states of Si II and C II. The number density inferred from these troughs, in combination with the deduced ionization parameter, allows us to determine the distance to these outflow components from the central source. We find these components to be at a distance of similar to 10 kpc. The distances and the number densities derived are consistent with the outflow being part of a galactic wind.en
dc.description.sponsorshipNASA STScI GO 11686, GO 12022en
dc.description.sponsorshipNSF AST 0837880en
dc.identifier.citationBenoit C. J. Borguet et al. 2012. "10 kpc Scale Seyfert Galaxy Outflow: HST/COS Observations of IRAS F22456-5125," ApJ 751 107 doi:10.1088/0004-637X/751/2/107en
dc.identifier.doihttps://doi.org/10.1088/0004-637x/751/2/107en
dc.identifier.issn0004-637Xen
dc.identifier.urihttp://hdl.handle.net/10919/25535en
dc.identifier.urlhttp://iopscience.iop.org/0004-637X/751/2/107/pdf/0004-637X_751_2_107.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: activeen
dc.subjectline: formationen
dc.subjectquasars: absorption linesen
dc.subjectquasars:en
dc.subjectindividual (iras f22456-5125)en
dc.subjectultraviolet-spectroscopic-exploreren
dc.subjectactive galactic nucleien
dc.subjectintrinsicen
dc.subjectabsorptionen
dc.subjectcolumn densitiesen
dc.subjectmetal abundancesen
dc.subjectquasar feedbacken
dc.subjectwindsen
dc.subjectluminosityen
dc.subjectabsorbersen
dc.subjectcampaignen
dc.title10 kpc Scale Seyfert Galaxy Outflow: HST/COS Observations of IRAS F22456-5125en
dc.title.serialAstrophysical Journalen
dc.typeArticle - Refereeden

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