Post-common envelope binaries from SDSS – XIV. The DR7 white dwarf–main-sequence binary catalogue
Post-common envelope binaries from SDSS – XIV. The DR7 white dwarf–main-sequence binary catalogue
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来自 SDSS – XIV DR7 白矮星 – 主序二星目录的后公共包络双星
DOI：
10.1111/j.1365-2966.2011.19923.x
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发表时间：
2012
影响因子：
4.8
通讯作者：
Schwope
中科院分区：
文献类型：
--
作者：
Rebassa-Mansergas;Nebot Gomez-Moran;Schreiber;Gänsicke;Schwope
我们提供了来自斯隆数字巡天(SDSS)的光谱白矮星主序(WDMS)双星星表的更新版。395个新系统是来自光谱SDSS I/II遗留目标的偶然发现。作为SDSS银河系理解和探索扩展计划(SEGUE)的一部分，我们对伴星有很大贡献的双星进行了专门和有效的( %成功率)搜索，确定了另外251个系统。我们的星表总共包含2248颗WDMS双星，如果有的话，还包括GALEX紫外线全天巡天和英国红外线望远镜(UKIRT)近红外巡天(UKIDSS)的星等。我们还提供了伴星的径向速度，通过使用NaIλλ 8183.27,8194.81吸收双星和/或Hα发射的SDSS光谱测量到的。使用我们的光谱分解/拟合技术的更新版本，我们确定/更新了白矮星的有效温度、表面重力和质量，以及整个星表中伴星的光谱类型。通过比较白矮星的质量、温度和伴星光谱类型的分布，我们证实我们的SEGUE探测计划已经成功地识别出具有较冷和较大质量的白矮星的WDMS双星，以及以前发现的较早的光谱类型。最后，我们为光谱SDSS WDMS双星开发了一个公开可用的交互式在线数据库，其中包含了我们简要描述的所有可用恒星参数、径向速度和星等。
We present an updated version of the spectroscopic white dwarf–main-sequence (WDMS) binary catalogue from the Sloan Digital Sky Survey (SDSS). 395 new systems are serendipitous discoveries from the spectroscopic SDSS I/II Legacy targets. As part of SDSS Extension for Galactic Understanding and Exploration (SEGUE), we have carried out a dedicated and efficient (64 per cent success rate) search for WDMS binaries with a strong contribution of the companion star, which were under-represented by all previous surveys, identifying 251 additional systems. In total, our catalogue contains 2248 WDMS binaries, and includes, where available, magnitudes from theGALEXAll Sky Survey in the ultraviolet and from the United Kingdom Infrared Telescope (UKIRT) Infrared Sky Survey (UKIDSS) in the near-infrared. We also provide radial velocities of the companion stars, measured from the SDSS spectroscopy using the Naiλλ 8183.27, 8194.81 absorption doublet and/or the Hα emission. Using an updated version of our spectral decomposition/fitting technique we determine/update the white dwarf effective temperatures, surface gravities and masses, as well as the spectral type of the companion stars for the entire catalogue. Comparing the distributions of white dwarf mass, temperature and companion spectral type, we confirm that our SEGUE survey project has been successful in identifying WDMS binaries with cooler and more massive white dwarfs, as well as earlier spectral types found previously. Finally, we have developed a publicly available interactive online data base for spectroscopic SDSS WDMS binaries containing all available stellar parameters, radial velocities and magnitudes which we briefly describe.
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影响因子：
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影响因子：
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影响因子：
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