SDSS、GALEX和天体测量星表中矮新星的数据挖掘
Data Mining for Dwarf Novae in SDSS, GALEX and Astrometric Catalogues
摘要：
通过对SDSS中的蓝色天体与GALEX和天体测量星表USNO-B1.0、GSC 2.3和CMC 14的交叉匹配，共识别出64个新的矮新星候选者，它们都具有一次或多次观测到的爆发。其中14个系统通过现有的和后续的光谱学被确认为激变变量。对这些新的矮新星和卡塔利娜实时瞬变巡天（CRTS）发现的矮新星的振幅分布和爆发频率的估计进行的研究表明，除了因距离较远而暗淡的系统外，还存在一群具有罕见爆发的内在暗淡的矮新星。
英文摘要：
By cross matching blue objects from SDSS with GALEX and the astrometric catalogues USNO-B1.0, GSC2.3 and CMC14, 64 new dwarf nova candidates with one or more observed outbursts have been identified. 14 of these systems are confirmed as cataclysmic variables through existing and follow-up spectroscopy. A study of the amplitude distribution and an estimate of the outburst frequency of these new dwarf novae and those discovered by the Catalina Real-time Transient Survey (CRTS) indicates that besides systems that are faint because they are farther away, there also exists a population of intrinsically faint dwarf novae with rare outbursts.
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