期刊
ASTROPHYSICAL JOURNAL
卷 591, 期 1, 页码 L41-L44出版社
UNIV CHICAGO PRESS
DOI: 10.1086/376962
关键词
ISM : clouds; ISM : individual (L1544); ISM : molecules; molecular processes
In this Letter, we present the first results from updated models of interstellar deuterium chemistry that now include all possible deuterated isotopomers of H-3(+). We find that in regions of high density and heavy depletion, such as prestellar cores, the inclusion of HD2+ and D-3(+) enhances the fractionation of ionic and neutral species significantly. Our models are the first to predict the very high atomic D/H ratios (greater than or equal to0.3) necessary for grain-surface chemistry models to reproduce the high formaldehyde and methanol fractionation seen in star-forming regions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据