论文标题
TIC 452991707和TIC 452991693作为候选六键系统，带有三个黯然失色的二进制文件
TIC 452991707 and TIC 452991693 as a Candidate Sextuple System with Three Eclipsing Binaries
论文作者
论文摘要
我们介绍了在苔丝数据中检测到的稀有系统的发现，该系统显示了三个不同的黯然失色的信号。 TIC 452991707 and TIC 452991693 seem to be the second such system on the sky, whose two components separated about 16" are gravitationally bounded, or comprise a co-moving pair. The three periods detected from the TESS data are: PA=1.46155 d, PB=1.77418 d, and PC=1.03989 d, respectively. The A and B periods belong to TIC 452991707，而C来自组件452991693。A对显示出最深的ECLIPS，其轨道非常偏心来自各种调查的较旧的光度法的数据还表明，在其周期内，两个内对A和B轨道可能是几年的。
We present the discovery of a rare system detected in the TESS data showing three different eclipsing-like signals. TIC 452991707 and TIC 452991693 seem to be the second such system on the sky, whose two components separated about 16" are gravitationally bounded, or comprise a co-moving pair. The three periods detected from the TESS data are: PA=1.46155 d, PB=1.77418 d, and PC=1.03989 d, respectively. The A and B periods belong to TIC 452991707, while the C comes from the component TIC 452991693. The pair A shows the deepest eclipses, and its orbit is very slightly eccentric. The third period C has lowest amplitude (eclipsing or ellipsoidal nature), but originates from TIC 452991693, which is connected to A+B because both visual components share similar proper motion and distance. Long-term collection of data from older photometry from various surveys also shows that the two inner pairs A and B orbit around their barycenter. Its period is probably of a few years, but for a final derivation of its orbital parameters one needs more up-to-date data. Hence, we call for new observations of this amazing system.
