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dc.date.accessioned2018-02-16T12:51:10Z
dc.date.available2018-02-16T12:51:10Z
dc.date.created2017-10-24T09:34:03Z
dc.date.issued2017
dc.identifier.citationBayliss, Matthew B. Sharon, Keren Acharyya, Ayan Gladders, Michael D. Rigby, Jane R. Bian, Fuyan Bordoloi, Rongmon Runnoe, Jessie Dahle, Håkon Kewley, Lisa Florian, Michael Johnson, Traci Paterno-Mahler, Rachel . Spatially Resolved Patchy Lyα Emission within the Central Kiloparsec of a Strongly Lensed Quasar Host Galaxy at z = 2.8. Astrophysical Journal Letters. 2017, 845(2)
dc.identifier.urihttp://hdl.handle.net/10852/60171
dc.description.abstractWe report the detection of extended Lyα emission from the host galaxy of SDSS J2222+2745, a strongly lensed quasar at z = 2.8. Spectroscopic follow-up clearly reveals extended Lyα in emission between two images of the central active galactic nucleus (AGN). We reconstruct the lensed quasar host galaxy in the source plane by applying a strong lens model to HST imaging and resolve spatial scales as small as ~200 pc. In the source plane, we recover the host galaxy morphology to within a few hundred parsecs of the central AGN and map the extended Lyα emission to its physical origin on one side of the host galaxy at radii ~0.5–2 kpc from the central AGN. There are clear morphological differences between the Lyα and rest-frame ultraviolet stellar continuum emission from the quasar host galaxy. Furthermore, the relative velocity profiles of quasar Lyα, host galaxy Lyα, and metal lines in outflowing gas reveal differences in the absorbing material affecting the AGN and host galaxy. These data indicate the presence of patchy local intervening gas in front of the central quasar and its host galaxy. This interpretation is consistent with the central luminous quasar being obscured across a substantial fraction of its surrounding solid angle, resulting in strong anisotropy in the exposure of the host galaxy to ionizing radiation from the AGN. This work demonstrates the power of strong-lensing-assisted studies to probe spatial scales that are currently inaccessible by other means. © 2017. The American Astronomical Society. All rights reserved.en_US
dc.languageEN
dc.language.isoenen_US
dc.publisherInstitute of Physics Publishing Ltd.
dc.titleSpatially Resolved Patchy Lyα Emission within the Central Kiloparsec of a Strongly Lensed Quasar Host Galaxy at z = 2.8en_US
dc.typeJournal articleen_US
dc.creator.authorBayliss, Matthew B.
dc.creator.authorSharon, Keren
dc.creator.authorAcharyya, Ayan
dc.creator.authorGladders, Michael D.
dc.creator.authorRigby, Jane R.
dc.creator.authorBian, Fuyan
dc.creator.authorBordoloi, Rongmon
dc.creator.authorRunnoe, Jessie
dc.creator.authorDahle, Håkon
dc.creator.authorKewley, Lisa
dc.creator.authorFlorian, Michael
dc.creator.authorJohnson, Traci
dc.creator.authorPaterno-Mahler, Rachel
cristin.unitcode185,15,3,0
cristin.unitnameInstitutt for teoretisk astrofysikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1507087
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astrophysical Journal Letters&rft.volume=845&rft.spage=&rft.date=2017
dc.identifier.jtitleAstrophysical Journal Letters
dc.identifier.volume845
dc.identifier.issue2
dc.identifier.pagecount7
dc.identifier.doihttp://dx.doi.org/10.3847/2041-8213/aa831a
dc.identifier.urnURN:NBN:no-62850
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn2041-8205
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/60171/2/Bayliss_2017_ApJL_845_L14.pdf
dc.type.versionPublishedVersion
cristin.articleidL14


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