The distance to the Lupus star formation region
The distance to the Lupus star formation region
复制标题
到狼星恒星形成区的距离
DOI：
10.1086/116454
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
L. Clampitt
中科院分区：
文献类型：
--
作者：
J. Hughes;P. Hartigan;L. Clampitt
我们使用测光和光谱观测31场恒星在狼疮，以确定距离的乌云。场星的消光与距离的关系图表明，它与狼疮云的距离为140±20 pc，这是以前估计的范围的低端。其中一颗场星有微弱的Hα发射和远红外过量，表明它是一颗以前未被编目的前主序星星星
We use photometric and spectroscopic observations of 31 field stars in Lupus to determine the distance to the dark clouds. A plot of extinction vs distance for the field stars indicates a distance of 140±20 pc to the Lupus clouds, which is at the lower end of the range defined by previous estimates. One of the field stars has weak Hα emission and a far-infrared excess, indicating that it is a previously uncatalogued pre-main-sequence star