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Spatially resolved ultraviolet spectra of the high-velocity nuclear outflow of NGC 1068

Groves, Brent; Cecil, Gerald; Ferruit, Pierre; Dopita, Michael

Description

We present ultraviolet emission-line maps of the narrow-line region (NLR) of NGC 1068. The maps span 115-318 nm, the biconical ionization cone, and several posited jet-ISM interactions, and the compact knots whose optical spectra we reported previously resemble kinematically the quasar associated absorption line systems. Across the NLR, we find that ultraviolet flux ratios are consistent with photoionization, not shock excitation, even for gas blueshifted abruptly to 3000 km s-1 relative to...[Show more]

dc.contributor.authorGroves, Brent
dc.contributor.authorCecil, Gerald
dc.contributor.authorFerruit, Pierre
dc.contributor.authorDopita, Michael
dc.date.accessioned2015-12-13T22:42:02Z
dc.date.available2015-12-13T22:42:02Z
dc.identifier.issn0004-6256
dc.identifier.urihttp://hdl.handle.net/1885/78788
dc.description.abstractWe present ultraviolet emission-line maps of the narrow-line region (NLR) of NGC 1068. The maps span 115-318 nm, the biconical ionization cone, and several posited jet-ISM interactions, and the compact knots whose optical spectra we reported previously resemble kinematically the quasar associated absorption line systems. Across the NLR, we find that ultraviolet flux ratios are consistent with photoionization, not shock excitation, even for gas blueshifted abruptly to 3000 km s-1 relative to galaxy systemic velocity or for gas projected near the radio jet. The knots may be radiatively accelerated, photoablated fragments of molecular clouds.
dc.publisherUniversity of Chicago Press
dc.sourceAstronomical Journal
dc.subjectKeywords: Galaxies: active; Galaxies: individual (NGC 1068); Galaxies: kinematics and dynamics; Galaxies: Seyfert
dc.titleSpatially resolved ultraviolet spectra of the high-velocity nuclear outflow of NGC 1068
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume611
dc.date.issued2004
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub7368
local.type.statusPublished Version
local.contributor.affiliationGroves, Brent Allan, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCecil, Gerald, University of North Carolina
local.contributor.affiliationFerruit, Pierre, Observatoire de Lyon
local.contributor.affiliationDopita, Michael, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.startpage786
local.bibliographicCitation.lastpage794
local.identifier.doi10.1086/422249
dc.date.updated2016-02-24T09:49:25Z
local.identifier.scopusID2-s2.0-6044260348
CollectionsANU Research Publications

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