THE DISTANCE TO THE LUPUS STAR FORMATION REGION

被引:60
作者
HUGHES, J [1 ]
HARTIGAN, P [1 ]
CLAMPITT, L [1 ]
机构
[1] SMITH COLL,DEPT ASTRON,NORTHAMPTON,MA 01063
关键词
D O I
10.1086/116454
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 Halpha emission and a far-infrared excess, indicating that it is a previously uncatalogued pre-main-sequence star.
引用
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页码:571 / 575
页数:5
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