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dc.contributor.authorEdelmann, H.
dc.contributor.authorHeber, U.
dc.contributor.authorNapiwotzki, R.
dc.date.accessioned2008-01-27T15:30:30Z
dc.date.available2008-01-27T15:30:30Z
dc.date.issued2001
dc.identifier.citationEdelmann , H , Heber , U & Napiwotzki , R 2001 , Spectral Monitoring of HS 0209+0832 a DAB White Dwarf in the DB Gap . in In: Procs of the 12th European Workshop on White Dwarf Stars, ASP Conference Proceedings 226 . Astronomical Society of the Pacific , pp. 143-6 .
dc.identifier.isbn1-58381-058-7
dc.identifier.otherPURE: 143375
dc.identifier.otherPURE UUID: 150b408f-aba3-4fe3-9320-fbe490e82aaa
dc.identifier.otherdspace: 2299/1424
dc.identifier.urihttp://hdl.handle.net/2299/1424
dc.descriptionOriginal paper can be found at: http://www.astrosociety.org/pubs/cs/222-252.html--Copyright Astronomical Society of the Pacific
dc.description.abstractWe report results of a spectral monitoring campagne of the DAB white dwarf HS 0209+0832, for which helium line profile variations were reported earlier (Heber et al. 1997). This finding is confirmed by our discovery of a second epoch (October 1997) of unusually low helium line strength and of their subsequent recovery. The observed changes in line strength correspond to a variation of the (average) helium abundance by a factor of 2.en
dc.language.isoeng
dc.publisherAstronomical Society of the Pacific
dc.relation.ispartofIn: Procs of the 12th European Workshop on White Dwarf Stars, ASP Conference Proceedings 226
dc.titleSpectral Monitoring of HS 0209+0832 a DAB White Dwarf in the DB Gapen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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