IMPROVED COLLISIONAL EXCITATION RATES FOR INTERSTELLAR WATER

被引：140

作者：

GREEN, S

MALUENDES, S

MCLEAN, AD

机构：

[1] MOLEC RES INST,PALO ALTO,CA 94304

[2] IBM CORP,ALMADEN RES CTR,SAN JOSE,CA 95120

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 1993年 / 85卷 / 01期

关键词：

MOLECULAR DATA; MOLECULAR PROCESSES;

D O I：

10.1086/191760

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Theoretical rate constants among the lowest 45 para and 45 ortho rotational levels of water in collisions with He atoms have been calculated for temperatures between 20 and 2000 K using a recently improved theoretical interaction potential. These values are about 30%-40% larger than those reported previously (Palma et al. 1988b) but relative sizes of different state-to-state rates have not changed significantly. Successive improvements to the theoretical description of this system now appear to have converged.

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页码：181 / 185

页数：5

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