Document Type
Article
Publication Date
9-16-2021
Publication Title
Monthly Notices of the Royal Astronomical Society
Volume
507
Issue
4
First page number:
6012
Last page number:
6019
Abstract
The HD molecule is an important coolant in early universe chemistry models and a tracer of H2 in star-forming regions. Rate coefficients for collisional excitation and de-excitation of HD rotational and vibrational levels form important ingredients in astrophysical models. While collisions with He, H2, and H are the most important, available data for H + HD collisions are largely limited to temperatures less than 1000 K for the vibrational ground state, low-lying rotational levels of the v = 1 HD vibrational level, or computed without reactive contributions. Here, through explicit quantum scattering calculations, we report extensive data for rovibrational transitions in HD induced by H atoms for a range of rotational levels in v = 1 and some v = 0 levels for temperatures up to 1000 K. The significance of the computed results for astrophysical modeling is discussed.
Keywords
Astrochemistry; Early Universe; Molecular data; Molecular processes
Disciplines
Other Chemistry | Physical Processes
File Format
File Size
2107 KB
Language
English
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Repository Citation
Zhou, B.,
Yang, B.,
Naduvalath, B.,
Kendrick, B. K.,
Chen, M.,
Stancil, P. C.
(2021).
Inelastic, Exchange, and Reactive Processes in Rovibrationally Excited Collisions of HD With H.
Monthly Notices of the Royal Astronomical Society, 507(4),
6012-6019.
http://dx.doi.org/10.1093/mnras/stab2381