Long-period companions of multiple stars

We examined the statistics of an angle gamma between the radius vector of a visual companion of a multiple star and the vector of its apparent relative motion in the system. We...本研究针对多星系统中目视伴星（visual companion）的径向矢量（radius vector）与该伴星在系统内的视相对运动矢量之间的夹角γ的统计特性展开了分析。我们……