Cross Sections and Rate Coefficients for Rovibrational Excitation of HeH+ Isotopologues by Electron Impact

被引：12
|
作者：
Ayouz, Mehdi [1 ]
Kokoouline, Viatcheslav [2 ]
机构：
[1] Univ Paris Saclay, Cent Supelec, LGPM, 8-10 Rue Joliot Curie, F-91190 Gif Sur Yvette, France
[2] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA
来源：
ATOMS | 2019年 / 7卷 / 03期
基金：
美国国家科学基金会;
关键词：
helium hydride ion; isotopologues; rovibrational excitation; R-matrix; quantum-defect theory; interstellar medium; DISSOCIATIVE RECOMBINATION; VIBRATIONAL-EXCITATION; RADIATIVE ASSOCIATION; MOLECULES;
D O I：
10.3390/atoms7030067
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Cross sections and thermal rate coefficients for rotational and vibration excitation of the four stable isotopologues of the 4HeH+ ion by electron impact are presented. The data are calculated using a previously developed theoretical approach. The obtained rate coefficients are fitted to analytical formulas with the 10-10,000 K interval of applicability. These present results could be useful in tokamak plasma and astrophysical modeling and can help in the detection of these species in the interstellar medium.
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页数：11
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