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dc.contributor.authorWilkes, Belinda Jane
dc.contributor.authorCarswell, R. F.
dc.date.accessioned2017-06-08T20:41:08Z
dc.date.issued1982
dc.identifierQuick submit: 2017-02-08T10:56:49-0500
dc.identifier.citationWilkes, B. J., and R. F. Carswell. 1982. “The Lyman-Alpha Emission-Line Profiles in High-Redshift QSOs.” Monthly Notices of the Royal Astronomical Society 201 (3) (December 1): 645–660. doi:10.1093/mnras/201.3.645.en_US
dc.identifier.issn0035-8711en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:32955259
dc.description.abstractHigh-resolution (~ 1 Å) spectra of six high-redshift QSOs were utilized in a study of the profile of the Lyα λ 1215.67 Å emission line. The symmetry of the prof:tle was studied after removing any absorption lines, which are mostly resolved at this resolution and after subtraction of N V λ1240 and Si II λ1263 emission from the observed blend. With one exception, Q2204 – 408, the Lyα profiles are symmetric to within the uncertainties of the procedure. It also became clear during the analysis that the profiles of the emission lines are not identical, in particular C IV λ 1549 generally has weaker wings and peak than Lyα λ 1216. It is argued that either the motion of the broad-line region gas is not purely radial, or else most of the Lyα photons originate in optically-thin gas. Further implications of these results are discussed.en_US
dc.description.sponsorshipAstronomyen_US
dc.language.isoen_USen_US
dc.publisherOxford University Press (OUP)en_US
dc.relation.isversionofdoi:10.1093/mnras/201.3.645en_US
dash.licenseLAA
dc.titleThe Lyman-alpha emission-line profiles in high-redshift QSOsen_US
dc.typeJournal Articleen_US
dc.date.updated2017-02-08T15:56:50Z
dc.description.versionVersion of Recorden_US
dc.relation.journalMonthly Notices of the Royal Astronomical Societyen_US
dash.depositing.authorWilkes, Belinda Jane
dc.date.available1982
dc.date.available2017-06-08T20:41:08Z
dc.identifier.doi10.1093/mnras/201.3.645*
dash.contributor.affiliatedWilkes, Belinda


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