Resolved fine and hyperfine state-to-state rate coefficients for the rotational transitions of C3N induced by collision with He

被引：4

作者：

Lara-Moreno, Miguel ^{[1
]}

Stoecklin, Thierry ^{[1
]}

Halvick, Philippe ^{[1
]}

机构：

[1] Univ Bordeaux, ISM, UMR 5255, F-33405 Talence, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2021年 / 507卷 / 03期

关键词：

molecular data; molecular processes; scattering; ISM: molecules; INELASTIC-COLLISIONS; EXCITATION; PROPENSITY; RADICALS; OH;

D O I：

10.1093/mnras/stab2453

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The fine and hyperfine resolved state-to-state rate coefficients for the rotational (de)excitation of C3N by collision with helium are computed. To this aim a 2D potential energy surface is calculated for this system. The recoupling method is used to obtain the fine and hyperfine structure resolved rate coefficients from spin-free close-coupling calculations. These results are compared with those given by the infinite-order sudden approximation and the M-randomizing limit. General propensity rules for the transitions are also found and analysed.

引用

页码：4086 / 4094

页数：9

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