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dc.contributorVirginia Tech
dc.contributor.authorBorguet, B. C. J.
dc.contributor.authorEdmonds, D.
dc.contributor.authorArav, N.
dc.contributor.authorDunn, J.
dc.contributor.authorKriss, G. A.
dc.date.accessioned2014-02-25T13:57:02Z
dc.date.available2014-02-25T13:57:02Z
dc.date.issued2012-06
dc.identifier.citationBenoit C. J. Borguet et al. 2012. " a 10 kpc scale seyfert galaxy outflow: hst/cos observations of iras f22456-5125," ApJ 751 107 doi:10.1088/0004-637X/751/2/107
dc.identifier.issn0004-637X
dc.identifier.urihttp://hdl.handle.net/10919/25535
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.
dc.description.sponsorshipNASA STScI GO 11686, GO 12022
dc.description.sponsorshipNSF AST 0837880
dc.language.isoen_US
dc.publisherIOP Publishing Ltd.
dc.subjectgalaxies: active
dc.subjectline: formation
dc.subjectquasars: absorption lines
dc.subjectquasars:
dc.subjectindividual (iras f22456-5125)
dc.subjectultraviolet-spectroscopic-explorer
dc.subjectactive galactic nuclei
dc.subjectintrinsic
dc.subjectabsorption
dc.subjectcolumn densities
dc.subjectmetal abundances
dc.subjectquasar feedback
dc.subjectwinds
dc.subjectluminosity
dc.subjectabsorbers
dc.subjectcampaign
dc.titlea 10 kpc scale seyfert galaxy outflow: hst/cos observations of iras f22456-5125
dc.typeArticle
dc.identifier.urlhttp://iopscience.iop.org/0004-637X/751/2/107/pdf/0004-637X_751_2_107.pdf
dc.date.accessed2014-02-05
dc.title.serialAstrophysical Journal
dc.identifier.doihttps://doi.org/10.1088/0004-637x/751/2/107


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