论文标题
磁性灾难变量候选和其他变量对象的探索性光谱II
Exploratory Spectroscopy of Magnetic Cataclysmic Variables Candidates and Other Variable Objects II
论文作者
论文摘要
这是一系列的第二篇论文，介绍了我们在主要从Catalina实时瞬态调查（CRT）中选择的候选人中搜索磁性灾难变量（MCV）。我们介绍了在Soar望远镜上获得的识别光谱，以及45个物体的大小和Gaia距离。其中，有39个对象被识别为CVS，其中8个目标显示MCV的观察性特征，是7个极性和1个中间极性。我们样本中的其余31个CV可能是在低（22个系统）或高（9个系统）积聚状态下的非磁系统。样品的六个目标不是CVS（5个AGN和1 T Tauri Star）。在具有MCV光谱的8个对象中，有6个是新的分类。在低积聚状态下观察到了三个极点，要么揭示了次级恒星的光电特征，并允许其光谱类型的估计，要么呈现与WD磁场相关的H $β$ zeeman组件。除了在该系列的第一篇论文中获得的结果，并取决于通过观察性随访确认这些分类，我们的结果还将将已知的极点的样本增加约9％。
This is the second paper of a series presenting our search for magnetic Cataclysmic Variables (mCVs) among candidates selected mostly from the Catalina Real-Time Transient Survey (CRTS). We present the identification spectra, obtained at the SOAR Telescope, as well as magnitudes and Gaia distances for 45 objects. Of these, 39 objects are identified as CVs, from which 8 targets show observational characteristics of mCVs, being 7 polars and 1 intermediate polar. The remaining 31 CVs in our sample are probably non-magnetic systems, in low (22 systems) or high (9 systems) accretion states. Six targets of the sample are not CVs (5 AGNs and 1 T Tauri star). Among the 8 objects with mCV spectra, 6 are new classifications. Three polars were observed in low accretion state, either revealing photospheric features of the secondary star and allowing the estimation of their spectral type, or presenting H$β$ Zeeman components associated to the WD magnetic field. In addition to the results obtained in the first paper of the series, and depending on the confirmation of these classifications by observational follow-up, our results would increase the sample of known polars by about 9 percent.
