| Issue |
A&A
Volume 390, Number 2, August I 2002
|
|
|---|---|---|
| Page(s) | 793 - 800 | |
| Section | Catalogs and data | |
| DOI | https://doi.org/10.1051/0004-6361:20020800 | |
| Published online | 12 July 2002 | |
Collisional excitation rates of H2O with H2
I. Pure rotational excitation rates with para-H2 at very low temperature
Laboratoire d'Astrophysique, UMR CNRS 6091, Observatoire de Besançon, Université de Franche-Comté, 41 bis avenue de l'Observatoire, BP 1615, 25010 Besançon Cedex, France
Corresponding author: M.-L. Dubernet, mld@obs-besancon.fr
Received:
25
March
2002
Accepted:
24
May
2002
Close coupling (CC) calculations of pure rotational excitation rates of H2O by para-H2 are performed between 5 K and 20 K. Some discrepancies with Phillips et al. ([CITE], [CITE]) are found and explained. We find that the presence of resonances greatly influences the excitation rates at very low temperature. Fits of our collisional rates are provided.
Key words: molecular data / molecular processes
© ESO, 2002
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