New PMS spectroscopic binaries in Orion

Table 2 contains the heliocentric radial velocity data versus Heliocentric Julian Day for six X-ray selected double-lined spectroscopic binaries in Orion. Of these, the four...表2收录了猎户座（Orion）中6颗经X射线选源（X-ray selected）的双线分光双星（double-lined spectroscopic binaries）的日心径向速度（heliocentric radial velocity）随日心儒略日（Heliocentric Julian Day）变化的数据。其中4颗……