H1504+65 - The Naked Stellar C/O Core of a Former Red Giant Observed with FUSE and Chandra

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dc.creatorWerner, K.
dc.creatorRauch, T.
dc.creatorBarstow, M. A.
dc.creatorKruk, J. W.
dc.date2002-05-06
dc.date.accessioned2026-07-07T02:03:34Z
dc.date.available2026-07-07T02:03:34Z
dc.descriptionH1504+65 is an extremely hot hydrogen-deficient white dwarf with an effective temperature close to 200,000 K. We present new FUV and soft X-ray spectra obtained with FUSE and Chandra, which confirm that H1504+65 has an atmosphere primarily composed of carbon and oxygen. The Chandra spectra show a wealth of absorption lines from highly ionized oxygen, neon and magnesium and suggest relatively high Ne and Mg abundances. This corroborates an earlier suggestion that H1504+65 represents a naked C/O stellar core or even the C/O envelope of a O-Ne-Mg white dwarf.
dc.descriptionTo appear in: Proceedings IAU Coll. 187, Exotic Stars as Challenges to Evolution, eds. C.A. Tout, W. Van Hamme, The ASP Conference Series, 6 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0205075
dc.identifierhttp://arxiv.org/abs/astro-ph/0205075
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4429
dc.subjectAstrophysics
dc.titleH1504+65 - The Naked Stellar C/O Core of a Former Red Giant Observed with FUSE and Chandra
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