论文标题
$ \ textit {gaia} $ White Dwarfs 40 PC III：Sutlancphere的新候选人的光谱观察
$\textit{Gaia}$ white dwarfs within 40 pc III: spectroscopic observations of new candidates in the southern hemisphere
论文作者
论文摘要
我们对太阳40 pc之内的248名白矮人候选人进行了光谱调查；这244个在南半球。观察结果主要是通过非常大的望远镜（X射手）和南部天体物理研究望远镜进行的。几乎所有候选人都是从$ \ textit {gaia} $数据版本3（DR3）中选择的。我们发现共有246个确认的白矮人，其中209个没有以前发表的光谱，还有两个主序列污染物。其中，100个白色矮人显示氢Balmer线，有69个没有特征光谱，并且两个仅显示中性氦气线。此外，有14个白矮人显示碳的痕迹，而37个具有比氦气重的其他元素的痕迹。我们通过检测Zeeman分裂的氢Balmer或金属光谱线观察到36个磁性白矮星。现在已经达到了高光谱完整性（> 97％），因此我们有1058个确认$ \ textit {gaia} $ dr3白色矮人在1083个候选人中，在太阳的40 pc中均在所有拒绝下拒绝。
We present a spectroscopic survey of 248 white dwarf candidates within 40 pc of the Sun; of these 244 are in the southern hemisphere. Observations were performed mostly with the Very Large Telescope (X-Shooter) and Southern Astrophysical Research Telescope. Almost all candidates were selected from $\textit{Gaia}$ Data Release 3 (DR3). We find a total of 246 confirmed white dwarfs, 209 of which had no previously published spectra, and two main-sequence star contaminants. Of these, 100 white dwarfs display hydrogen Balmer lines, 69 have featureless spectra, and two show only neutral helium lines. Additionally, 14 white dwarfs display traces of carbon, while 37 have traces of other elements that are heavier than helium. We observe 36 magnetic white dwarfs through the detection of Zeeman splitting of their hydrogen Balmer or metal spectral lines. High spectroscopic completeness (> 97 per cent) has now been reached, such that we have 1058 confirmed $\textit{Gaia}$ DR3 white dwarfs out of 1083 candidates within 40 pc of the Sun at all declinations.
