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18 April 2024

» arxiv » astro-ph/0501252

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Spectral Analyses of DO White Dwarfs and PG1159 Stars from the Sloan Digital Sky Survey
S. D. Huegelmeyer ; S. Dreizler ; K. Werner ; A. Nitta ; S. J. Kleinman ; J. Krzesinski ;
Date:	13 Dec 2004
Subject:	astro-ph
Affiliation:	Institut fuer Astrophysik, Goettingen, Germany, Institut fuer Astronomie und Astrophysik, Tuebingen, Germany, Apache Point Observatory, New Mexico State University, USA
Abstract:	SDSS (DR1 and DR2) has recently proposed 7 new DO white dwarfs as well as 6 new PG1159 stars. This is a significant increase in the known number of DOs and PG1159 stars. Our spectral analyses provide stellar parameters which can then be used to derive constraints for the evolution of H-deficient white dwarfs. A comprehensive understanding of these objects is still severely hampered by low-number statistics.
Source:	arXiv, astro-ph/0501252
Other source:	[GID 563728] astro-ph/0508101
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