THE EFFECT OF RAPID NEUTRAL-NEUTRAL REACTIONS ON CHEMICAL-MODELS OF DENSE INTERSTELLAR CLOUDS

被引：119

作者：

HERBST, E

LEE, HH

HOWE, DA

MILLAR, TJ

机构：

[1] OHIO STATE UNIV,DEPT ASTRON,COLUMBUS,OH 43210

[2] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT MATH,MANCHESTER M60 1QD,LANCS,ENGLAND

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1994年 / 268卷 / 02期

基金：

美国国家科学基金会;

关键词：

MOLECULAR PROCESSES; ISM; CLOUDS; MOLECULES;

D O I：

10.1093/mnras/268.2.335

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent experiments on rapid neutral-neutral reactions involving the radical CN at low temperature and the neutral C atom at room temperature suggest that atom-neutral and radical-neutral reactions may be generally more rapid at low temperature than hitherto thought. We have included a variety of rapid neutral-neutral reactions in our gas-phase chemical models of quiescent, dense interstellar clouds. We find the calculated abundances of many molecules to be greatly changed from previous values. In particular, the peak 'early-time' abundances of organic molecules are reduced.

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页码：335 / 344

页数：10

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