Document Type
Article
Publication Date
6-25-2019
Publication Title
Monthly Notices of the Royal Astronomical Society
Publisher
Oxford University Press
Volume
488
Issue
1
First page number:
381
Last page number:
386
Abstract
Rate coefficients for rotational transitions in HD induced by H2 impact for rotational levels of HD j ≤ 8 and temperatures 10 K ≤ T ≤ 5000 K are reported. The quantum mechanical close-coupling (CC) method and the coupled-states (CS) decoupling approximation are used to obtain the cross-sections employing the most recent highly accurate H2–H2 potential energy surface (PES). Our results are in good agreement with previous calculations for low-lying rotational transitions The cooling efficiency of HD compared with H2 and astrophysical applications are briefly discussed.
Keywords
Molecular data; Molecular Processes; Scattering
Disciplines
Astrophysics and Astronomy | Atomic, Molecular and Optical Physics
File Format
File Size
6.268 KB
Language
English
Repository Citation
Wan, Y.,
Balakrishnan, N.,
Yang, B. H.,
Forrey, R. C.,
Stancil, P. C.
(2019).
Rotational Quenching of HD Induced by Collisions with H2 Molecules.
Monthly Notices of the Royal Astronomical Society, 488(1),
381-386.
Oxford University Press.
http://dx.doi.org/10.1093/mnras/stz1735