由SPY得到的径向速度变量sdO/Bs--三颗新的短周期双星的初步轨道
Radial Velocity Variable sdO/Bs from SPY - Preliminary Orbits of Three New Short Period Binaries
摘要：
我们提出了新的结果，从后续的时间分辨光谱的径向速度可变热亚矮星的SPY项目。在ESO NTT处获取中分辨率光谱。给出了三个单线sdO/B双星的初步轨道解。所有双星的轨道周期都很短，伴星很可能是白矮星或主序星晚期。后续的时间分辨光谱是必要的，以测量轨道参数的精度更高。光变曲线应采取为了寻找反射效果和/或日食。
英文摘要：
We present new results from follow-up time-resolved spectroscopy of radial velocity variable hot subdwarfs from the SPY project. Medium resolution spectra were taken at the ESO NTT. Preliminary orbital solutions are presented for three single-lined sdO/B binaries. The orbital periods of all binaries are short and the companions are most likely white dwarfs or late main-sequence stars. Follow-up time-resolved spectroscopy is necessary to measure the orbital parameters with higher accuracy. Light curves should be taken in order to search for reflection effects and or eclipses.
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