【摘要】 采用星风质量吸积的角动量守恒模型,用Monte-Carlo方法研究了普通红巨星双星系统和钡星的轨道根数的变化规律及双星系统的质量比分布.由于钡星系统是由普通红巨星双星系统演化而来,因此钡星系统的轨道偏心率及周期的分布显示了经过质量吸积后双星系统的最终轨道特征.更多还原

【Abstract】 In this paper,based on the total angular momentum conservation model of wind accretion in binary systems,we carry out a serious of Monte-Carlo simulations to study the properties of G-K giant star system’s and Ba star system’s orbital elements and the distribution of binary system’s mass ratio.As Ba star systems are evolved from G-K star systems,the distribution of orbital eccentricities and periods of Ba stars can show the final orbital character of binaries.更多还原