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SPECTROSCOPY FROM THE HUBBLE SPACE TELESCOPE COSMIC ORIGINS SPECTROGRAPH OF THE SOUTHERN NOVA-LIKE BB DORADUS IN AN INTERMEDIATE STATE

dc.contributor.authorGodon, Patrick
dc.contributor.authorSion, Edward M.
dc.contributor.authorGänsicke, Boris T.
dc.contributor.authorHubeny, Ivan
dc.contributor.authorde Martino, Domitilla
dc.contributor.authorPala, Anna F.
dc.contributor.authorRodríguez-Gil, Pablo
dc.contributor.authorSzkody, Paula
dc.contributor.authorToloza, Odette
dc.date.accessioned2017-03-01T22:58:57Z
dc.date.available2017-03-01T22:58:57Z
dc.date.issued2016-12-13
dc.identifier.citationSPECTROSCOPY FROM THE HUBBLE SPACE TELESCOPE COSMIC ORIGINS SPECTROGRAPH OF THE SOUTHERN NOVA-LIKE BB DORADUS IN AN INTERMEDIATE STATE 2016, 833 (2):146 The Astrophysical Journalen
dc.identifier.issn1538-4357
dc.identifier.doi10.3847/1538-4357/833/2/146
dc.identifier.urihttp://hdl.handle.net/10150/622674
dc.description.abstractWe present a spectral analysis of the spectrum from the Hubble Space Telescope Cosmic Origins Spectrograph (HST/COS) of the southern VY Scl nova-like variable BB Doradus, obtained as part of a Cycle 20 HST/COS survey of accreting white dwarfs (WDs) in cataclysmic variables. BB Dor was observed with COS during an intermediate state with a low mass accretion rate, thereby allowing an estimate of the WD temperature. The results of our spectral analysis show that the WD is a significant far-ultraviolet (FUV) component of the spectrum with a temperature of about 35,000-50,000 K, assuming a WD mass of 0.80 M-circle dot (log(g) = 8.4). The disk, with a mass accretion rate of approximate to 10(-10) M-circle dot yr(-1), contributes about 1/5 to 1/2 of the FUV flux.
dc.description.sponsorshipSpace Telescope Science Institute [12870]; NASA [NAS 5-26555]; European Research Council under the European Union's Seventh Framework Programme (FP)/ERC [320964]; ASI INAF [I/037/12/0]en
dc.language.isoenen
dc.publisherIOP PUBLISHING LTDen
dc.relation.urlhttp://stacks.iop.org/0004-637X/833/i=2/a=146?key=crossref.1657977227b4d67b68f65bf625d5c4a1en
dc.rights© 2016. The American Astronomical Society. All rights reserved.en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectaccretion, accretion disksen
dc.subjectbinaries: closeen
dc.subjectnovae cataclysmic variablesen
dc.subjectstars: individual (BB Doradus)en
dc.subjectultraviolet: starsen
dc.subjectwhite dwarfsen
dc.titleSPECTROSCOPY FROM THE HUBBLE SPACE TELESCOPE COSMIC ORIGINS SPECTROGRAPH OF THE SOUTHERN NOVA-LIKE BB DORADUS IN AN INTERMEDIATE STATEen
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Steward Observen
dc.identifier.journalThe Astrophysical Journalen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-07-02T22:34:46Z
html.description.abstractWe present a spectral analysis of the spectrum from the Hubble Space Telescope Cosmic Origins Spectrograph (HST/COS) of the southern VY Scl nova-like variable BB Doradus, obtained as part of a Cycle 20 HST/COS survey of accreting white dwarfs (WDs) in cataclysmic variables. BB Dor was observed with COS during an intermediate state with a low mass accretion rate, thereby allowing an estimate of the WD temperature. The results of our spectral analysis show that the WD is a significant far-ultraviolet (FUV) component of the spectrum with a temperature of about 35,000-50,000 K, assuming a WD mass of 0.80 M-circle dot (log(g) = 8.4). The disk, with a mass accretion rate of approximate to 10(-10) M-circle dot yr(-1), contributes about 1/5 to 1/2 of the FUV flux.


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