EW of 4 primary stars and the Sun

Study of primary stars lying in Sirius-like systems with various masses of white dwarf (WD) companions and orbital separations is one of the key aspects to understand the origin...针对拥有不同质量白矮星（WD）伴星与不同轨道间距的类天狼星系统中的主星开展的研究，是理解其起源的关键方向之一……