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Title: Rotational quenching of HD induced by collisions with H2 molecules
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.  more » « less
Award ID(s):
1806334 1806180
NSF-PAR ID:
10108651
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
Monthly Notices of the Royal Astronomical Society
Volume:
488
Issue:
1
ISSN:
0035-8711
Page Range / eLocation ID:
381 to 386
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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