Metal abundances in PG1159 stars from Chandra and FUSE spectroscopy

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dc.creatorWerner, K.
dc.creatorDeetjen, J. L.
dc.creatorDreizler, S.
dc.creatorRauch, T.
dc.creatorBarstow, M. A.
dc.creatorKruk, J. W.
dc.date2002-08-28
dc.date.accessioned2026-07-07T02:04:50Z
dc.date.available2026-07-07T02:04:50Z
dc.descriptionWe investigate FUSE spectra of three PG1159 stars and do not find any evidence for iron lines. From a comparison with NLTE models we conclude a deficiency of 1-1.5 dex. We speculate that iron was transformed into heavier elements. A soft X-ray Chandra spectrum of the unique H- and He-deficient star H1504+65 is analyzed. We find high neon and magnesium abundances and confirm that H1504+65 is the bare core of either a C-O or a O-Ne-Mg white dwarf.
dc.descriptionTo be published in: Proceedings 13th European Workshop on White Dwarfs, NATO Science Series, 4 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/astro-ph/0208505
dc.identifierhttp://arxiv.org/abs/astro-ph/0208505
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4911
dc.subjectAstrophysics
dc.titleMetal abundances in PG1159 stars from Chandra and FUSE spectroscopy
dc.typetext

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