Spectral Analyses of DO White Dwarfs and PG1159 Stars from the Sloan Digital Sky Survey
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.
- Publication:
-
14th European Workshop on White Dwarfs
- Pub Date:
- July 2005
- DOI:
- 10.48550/arXiv.astro-ph/0501252
- arXiv:
- arXiv:astro-ph/0501252
- Bibcode:
- 2005ASPC..334..233H
- Keywords:
-
- Astrophysics
- E-Print:
- 4 pages, 4 figures, 1 table, requires asp2004.sty, to appear in the proceedings of the 14th European Workshop on White Dwarfs, eds. D. Koester and S. Moehler, ASP Conf. Ser