Observational constraints on the evolutionary connection between PG 1159 stars and DO white dwarfs

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dc.creatorHuegelmeyer, S. D.
dc.creatorDreizler, S.
dc.creatorWerner, K.
dc.creatorKrzesinski, J.
dc.creatorNitta, A.
dc.creatorKleinman, S. J.
dc.date2006-10-25
dc.date.accessioned2026-07-07T07:27:08Z
dc.date.available2026-07-07T07:27:08Z
dc.descriptionThe Sloan Digital Sky Survey has provided spectra of a large number of new PG 1159 stars and DO white dwarfs. This increase in known hot H-deficient compact objects significantly improves the statistics and helps to investigate late stages of stellar evolution. We have finished our analyses of nine PG 1159 stars and 23 DO white dwarfs by means of detailed NLTE model atmospheres. From the optical SDSS spectra, effective temperatures, surface gravities, and element abundances are derived by using our new automated chi^2-fitting in order to place the observed objects in an evolutionary context. Especially the connection between PG 1159 stars and DO white dwarfs has been investigated.
dc.description6 pages, 1 figure, to appear in the proceedings of the 15th European Workshop on White Dwarf
dc.identifierhttps://arxiv.org/abs/astro-ph/0610746
dc.identifierhttp://arxiv.org/abs/astro-ph/0610746
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117273
dc.subjectAstrophysics
dc.titleObservational constraints on the evolutionary connection between PG 1159 stars and DO white dwarfs
dc.typetext

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