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Open AccessArticle

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

1
LGPM, CentraleSupélec, Université Paris-Saclay, 8-10 rue Joliot-Curie, 91 190 Gif-sur-Yvette, France
2
Department of Physics, University of Central Florida, Orlando, FL 32816, USA
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Atoms 2019, 7(3), 67; https://doi.org/10.3390/atoms7030067
Received: 29 May 2019 / Revised: 21 June 2019 / Accepted: 28 June 2019 / Published: 5 July 2019
(This article belongs to the Section Atomic, Molecular and Nuclear Spectroscopy and Collisions)
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Abstract

Cross sections and thermal rate coefficients for rotational and vibration excitation of the four stable isotopologues of the 4 HeH + 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. View Full-Text
Keywords: helium hydride ion; isotopologues; rovibrational excitation; R-matrix; quantum-defect theory; interstellar medium helium hydride ion; isotopologues; rovibrational excitation; R-matrix; quantum-defect theory; interstellar medium
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Ayouz, M.; Kokoouline, V. Cross Sections and Rate Coefficients for Rovibrational Excitation of HeH+ Isotopologues by Electron Impact. Atoms 2019, 7, 67.

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