论文标题
使用投影的旋转速度和二元光谱模型检测Lamost-MR中2460个SB2候选物
Detection of 2460 SB2 candidates in the LAMOST-MRS, using projected rotational velocities and a binary spectral model
论文作者
论文摘要
我们提出了一种使用$ v \ sin {i} $ value的新方法，用于检测双线光谱二进制文件（SB2）。该方法对Lamost-MRS的合成和真实光谱进行了测试。它可以可靠地检测出使用$ v \ sin {i} _1+v \ sin {i} _2 <300 \，km \，s^{ - 1} $的双层二进制文件的SB2候选者，如果径向速度分离足够大。使用此方法，我们检测到2460个SB2候选者，其中1410个是新发现。我们确认了由二进制模型估计的径向速度分离与使用选定样品估计的$ v \ sin {i} _0 $之间的相关性。此外，我们的方法在开放群集M〜11中找到了一个新的SB2候选者。
We present a new method for the detection of double-lined spectroscopic binaries (SB2) using $v\sin{i}$ values from spectral fits. The method is tested on synthetic and real spectra from LAMOST-MRS. It can reliably detect SB2 candidates for double-lined binaries with $v\sin{i}_1+v\sin{i}_2<300\,km\,s^{-1}$ if the radial velocity separation is large enough. Using this method, we detect 2460 SB2 candidates, 1410 of which are new discoveries. We confirm the correlation between the radial velocity separation estimated by the binary model and $v\sin{i}_0$ estimated by the single star model using the selected sample. Additionally, our method finds one new SB2 candidate in open cluster M~11.
