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Identification of a DO White Dwarf and a PG1159 Star in the ESO SN Ia Progenitor Survey (SPY)

dc.contributor.authorWerner, K.
dc.contributor.authorRauch, T.
dc.contributor.authorNapiwotzki, R.
dc.contributor.authorChristlieb, N.
dc.contributor.authorReimers, D.
dc.contributor.authorKarl, C.
dc.date.accessioned2008-10-06T07:53:57Z
dc.date.available2008-10-06T07:53:57Z
dc.date.issued2005
dc.identifier.citationWerner , K , Rauch , T , Napiwotzki , R , Christlieb , N , Reimers , D & Karl , C 2005 , Identification of a DO White Dwarf and a PG1159 Star in the ESO SN Ia Progenitor Survey (SPY) . in In: Procs of the 14th European Workshop on White Dwarfs - ASP Conf Series 334 . Astronomical Society of the Pacific , pp. 221-224 .
dc.identifier.isbn1-58381-197-4
dc.identifier.isbn978-1-58381-268-6
dc.identifier.otherdspace: 2299/2430
dc.identifier.urihttp://hdl.handle.net/2299/2430
dc.descriptionOriginal paper can be found at: http://astrosociety.org/pubs/cs/328.html Copyright ASP
dc.description.abstractWe present high-resolution VLT spectra of a new DO white dwarf and a new PG1159 star, which we identified in the ESO SPY survey. The PG1159 star is a low-gravity, extremely hot (Te® = 160 000 K, log g = 6) star, having a C/He dominated atmosphere with considerable amounts of O and Ne (He=38%, C=54%, O=6%, Ne=2% by mass). It is located within the planetary nebula nuclei instability strip and pulsations have been discovered. The DO is a unique object. From He i/He ii line strengths we found Te®¼60 000 K, however, the He ii lines are extraordinarily strong and cannot be fitted by any model.en
dc.format.extent456238
dc.language.isoeng
dc.publisherAstronomical Society of the Pacific
dc.relation.ispartofIn: Procs of the 14th European Workshop on White Dwarfs - ASP Conf Series 334
dc.titleIdentification of a DO White Dwarf and a PG1159 Star in the ESO SN Ia Progenitor Survey (SPY)en
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 (CAR)
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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