Kinetic rate coefficients for electron-driven collisions with CH+: dissociative recombination and rovibronic excitation

被引：3

作者：

Forer, Joshua ^{[1
,2
]}

Hvizdos, David ^{[3
,4
]}

Ayouz, Mehdi ^{[5
]}

Greene, Chris H. ^{[3
,4
]}

Kokoouline, Viatcheslav ^{[1
]}

机构：

[1] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA

[2] Univ Bordeaux, Inst Sci Mol, CNRS, UMR 5255, F-33405 Talence, France

[3] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA

[4] Purdue Univ, Purdue Quantum Sci & Engn Inst, W Lafayette, IN 47907 USA

[5] Univ Paris Saclay, Lab Genie Proc & Mat, Cent Supelec, F-91190 Gif Sur Yvette, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 527卷 / 03期

基金：

美国国家科学基金会;

关键词：

astrochemistry; molecular processes; plasmas; scattering; ISM: clouds; LOW-ENERGY-ELECTRON; ROTATIONAL-EXCITATION; CROSS-SECTIONS; MOLECULAR-IONS; TEMPERATURE;

D O I：

10.1093/mnras/stad3577

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Cross-sections and rate coefficients for rovibronic excitation of the CH+ ion by electron impact and dissociative recombination of CH+ with electrons are evaluated using a theoretical approach combining an R-matrix method and molecular quantum defect theory. The method has been developed and tested, comparing the theoretical results with the data from the recent Cryogenic Storage Ring experiment. The obtained cross-sections and rate coefficients evaluated for temperatures from 1 to 10 000 K could be used for plasma modelling in the interpretation of astrophysical observations and also in the technological applications where the molecular hydrocarbon plasma is present.

引用

页码：5238 / 5243

页数：6