Far Ultraviolet Spectroscopic Explorer Observations of the HD Molecule toward HD 73882
Far Ultraviolet Spectroscopic Explorer Observations of the HD Molecule toward HD 73882
复制标题
HD 分子对 HD 73882 的远紫外光谱探测器观察
DOI:
10.1086/312799
复制
发表时间:
2000
期刊:
影响因子:
--
通讯作者:
H. Moos
中科院分区:
文献类型:
--
作者:
R. Ferlet;M. André;G. Hébrard;A. D. Étangs;M. Lemoine;G. Forêts;E. Roueff;B. Rachford;J. Shull;T. Snow;J. Tumlinson;A. Vidal;D. York;H. Moos
The Lyman and Werner band systems of deuterated molecular hydrogen (HD) occur in the far-UV range below 1120 Å. The high sensitivity of the FUSE mission can give access, at moderate resolution, to hot stars shining through translucent clouds in the hope of observing molecular cores in which deuterium is essentially in the form of HD. Thus, the measurement of the HD/H2 ratio may become a powerful new tool to evaluate the deuterium abundance, D/H, in the interstellar medium. We report on the detection of HD toward the high-extinction star HD 73882 (EB-V = 0.72). A preliminary analysis is presented.