THE INTERSTELLAR DEUTERIUM-TO-HYDROGEN RATIO - A REEVALUATION OF LYMAN ABSORPTION-LINE MEASUREMENTS

被引：50

作者：

MCCULLOUGH, PR

机构：

[1] Astronomy Department, University of California, Berkeley

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 390卷 / 01期

关键词：

ISM; ABUNDANCES; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ULTRAVIOLET; INTERSTELLAR;

D O I：

10.1086/171271

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The D/H ratio in the local interstellar medium is evaluated based upon previously published measurements of Lyman absorption lines together with the hypothesis that the D/H ratio is constant. A unique value for the D/H ratio of 1.5(+/- 0.2) x 10(-5) by number is shown to be consistent with all published determinations made with the Copernicus and the International Ultraviolet Explorer satellites. The possibility that the D/H ratio may vary substantially in the local interstellar medium is considered and found to be unnecessary.

引用

收藏

页码：213 / 218

页数：6

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