Sloan Digital Sky Survey Data Release 4从光谱确认的白矮星目录
天体物理学
2011-05-05 v1
摘要
我们present了来自Sloan Digital Sky Survey Data Release 4的9316颗光谱确认的白矮星。我们通过光度切割和光谱建模选择了这些星体，并以视觉检查为依据。约有6000颗星系为新发现，约为现有光谱确认白矮星数量的两倍。我们通过对纯氢和氦大气模型网格进行温度和表面重力拟合来分析这些星系。在少数异常星体中，我们发现一组疑似以氦为核心的DA型白矮星，其估计质量低于0.3 Msun，包括两颗可能是目前找到的质量最低者。我们还present了928颗热子星的列表。
关键词
引用
@article{arxiv.astro-ph/0606700,
title = {A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4},
author = {Daniel J. Eisenstein and James Liebert and Hugh C. Harris and S. J. Kleinmann and Atsuko Nitta and Nicole Silvestri and Scott A. Anderson and J. C. Barentine and Howard J. Brewington and J. Brinkmann and Michael Harvanek and Jurek Krzesinski and Eric H. Neilsen and Dan Long and Donald P. Schneider and Stephanie A. Snedden},
journal= {arXiv preprint arXiv:astro-ph/0606700},
year = {2011}
}
备注
Accepted by the Astrophysical Journal Supplements, 25 pages, 24 figures, LaTeX. The electronic catalog, as well as diagnostic figures and links to the spectra, is available at http://das.sdss.org/wdcat/dr4/