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Einstein A-coefficients for vib-rotational transitions in CO
被引:60
作者:
Chandra, S
Maheshwari, VU
Sharma, AK
机构:
[1] UNIV GORAKHPUR,DEPT PHYS,GORAKHPUR 273009,UTTAR PRADESH,INDIA
[2] INTER UNIV CTR ASTRON & ASTROPHYS,PUNE 411007,MAHARASHTRA,INDIA
来源:
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
|
1996年
/
117卷
/
03期
关键词:
ISM;
molecules;
molecular data;
D O I:
10.1051/aas:1996173
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
Einstein A-coefficients for vib-rotational transitions in CO isotopomers, for vibrational quantum number upsilon up to 20, rotational quantum number J up to 140, and Delta upsilon up to 4, are calculated. The change in J is governed by the selection rules Delta J = +/- 1. These coefficients play an important role in astronomy, as CO is the most abundant molecule after H-2, and has been observed in almost all the astronomical objects.
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页码:557 / 559
页数:3
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