论文标题
SS 433：C II从磁盘Photosphere发出
SS 433: C II emission from the disk photosphere
论文作者
论文摘要
银河系微Quasar SS 433是二元系统的成员，但是缺乏有关组件轨道速度的数据。在两个轨道循环中，已经跟踪了7231和7236 Angstrom在7231和7236 Angstrom处的发射线。光谱足以确定这些线被伴侣黯然失色，因此提取了紧凑型物体的轨道速度的度量。这些线在磁盘光球中形成。该速度为176 Plus/Minus 13 km/s。 Xshooter会做得更好吗？
The Galactic microquasar SS 433 is a member of a binary system but there is a lack of data on the orbital velocities of the components. The emission lines of the C II doublet at 7231 and 7236 Angstrom have been tracked nightly over two orbital cycles. The spectra are adequate to establish that these lines are eclipsed by the companion and hence to extract a measure of the orbital velocity of the compact object; the lines are formed in the disk photosphere. This velocity is 176 plus/minus 13 km/s. Could XSHOOTER do better?
