单个恒星的谱线也会发生摆动

银河系中有许多类似太阳的恒星,它们核聚变正在间歇地进行着,它们的质量损失也是间歇的,恒星在径向加速也是间歇的;这些恒星之间的距离会出现缩短与增大交替现象,当我们观察这些恒星时,会有谱线发生摆动的恒星。银河系除双星绕转运动可引发谱线摆动外,还有一些单个恒星谱线也会发生摆动;原来认为是单谱分光双星,其实它们不完全是双星,其中包含一些谱线来回摆动的单个恒星。

Spectral Lines of the Single Star Swing

Many stars similar to the sun exist in the Galaxy.Their nuclear fusion,as well as their mass loss,proceeds intermittently,and the radial acceleration of the stars in the galaxy are intemittent as well.As a result,the distance between these stars will alternate between shortening and augmentation,and it is the same as the distance between the sun and other stars;when we observe these stars,their spectral lines are found to swing.Binary stars can cause swing in their spectral lines.Equivalently the single star spectral lines are found to swing as well.It tells us that the prviously deemed single-lined spectroscopic binar is not always the binary star in fact,and it may involve the single star.