Rovibrational excitation of HD molecules by He atoms

Authors
Roueff, E Zeippen, CJ
Citation
E. Roueff et Cj. Zeippen, Rovibrational excitation of HD molecules by He atoms, ASTR AST SS, 142(3), 2000, pp. 475-497
Citations number
13
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
ISSN journal
03650138 → ACNP
Volume
142
Issue
3
Year of publication
2000
Pages
475 - 497
Database
ISI
SICI code
0365-0138(200003)142:3<475:REOHMB>2.0.ZU;2-E
Abstract
Rate coefficients for rovibrational transitions induced in HD by collisions with He are presented. Full quantum mechanical treatment has been used wit h the interaction potential surface calculated by Muchnick & Russek (1994), The vibrational upsilon = 1 --> 0 quenching rates of HD due to various per turbers are compared up to temperatures of 1500 K. The influence of vibrati onally excited channels on the pure rotational excitation cross sections is shown to be negligible.