z-logo
open-access-imgOpen Access
Rotational quenching of HD induced by collisions with H2 molecules
Author(s) -
Yier Wan,
N. Balakrishnan,
Benhui Yang,
Robert C. Forrey,
P. C. Stancil
Publication year - 2019
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-8711
pISSN - 0035-8711
DOI - 10.1093/mnras/stz1735
Subject(s) - physics , decoupling (probability) , atomic physics , quenching (fluorescence) , close coupling , rotational energy , rotational temperature , hydrogen molecule , molecule , rotational transition , angular momentum , optics , quantum mechanics , fluorescence , control engineering , engineering
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.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom