论文标题
UGPS J194310+183851：不寻常的光学和X射线微弱的灾难性变量？
UGPS J194310+183851: an Unusual Optical and X-ray Faint Cataclysmic Variable?
论文作者
论文摘要
越来越多的多个上述光学和红外天空调查正在发现越来越多的新变量恒星数量越来越多。 UKIDSS银河飞机调查（UGP）中相邻近红外滤波器的观察结果之间的短间隔使得在分钟的时间表上发现可变性。我们通过使用光谱，时间序列光度法和靶向X射线观测来报告一个这样对象的性质。我们建议UGP J194310.32+183851.8是一种磁性灾难性的新颖性恒星，可能具有比平均旋转期更长的特征，并且轨道周期可能比周期间隙短（即p $ _ {\ _ {\ text {orb}} $ <2小时）。我们认为，恒星可能是在此期间边界以下存在的短期中间极下子类的成员，但是与该组的其他成员相比，系统的SED的附加功能是淡淡的和红色的。
The growing number of multi-epoch optical and infrared sky surveys are uncovering unprecedented numbers of new variable stars, of an increasing number of types. The short interval between observations in adjacent near infrared filters in the UKIDSS Galactic Plane Survey (UGPS) allows for the discovery of variability on the timescale of minutes. We report on the nature of one such object, through the use of optical spectroscopy, time-series photometry and targeted X-ray observations. We propose that UGPS J194310.32+183851.8 is a magnetic cataclysmic variable star of novel character, probably featuring a longer than average spin period and an orbital period likely to be shorter than the period gap (i.e. P$_{\text{orb}}$<2 hours). We reason that the star is likely a member of the short period Intermediate-Polar subclass that exist below this period boundary, but with the additional feature that system's SED is fainter and redder than other members of the group.
