Rotational excitation of HF in collision with He Virtual Observatory Resource

Authors
  1. Reese C.
  2. Stoecklin T.
  3. Voronin A.
  4. Rayez J.C.
  5. Published by
    CDS
Abstract

We report Close Coupling calculations of the rotational transitions induced in collisions between HF molecules and He atoms. We consider transitions for levels up to J=9 and for temperatures up to 300K. We use a new global 3D potential energy surface which we proposed recently and is the best available at the moment. This surface exhibits two minima associated both with linear geometries (V=-43.70cm^-1^ for He-HF and V=-25.88cm^-1^ for He-FH). Close Coupling calculations are performed in the collision energy 10^-6^ to 2000cm^-1^ interval. Our results validate the estimate, by Neufeld et al. (1997ApJ...488L.141N), of the abundance of HF in the interstellar medium which was detected recently.

Keywords
  1. Atomic physics
Bibliographic source Bibcode
2005A&A...430.1139R
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/430/1139
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/430/1139
Document Object Identifer DOI
doi:10.26093/cds/vizier.34301139

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History

2005-03-10T11:41:53Z
Resource record created
2005-03-10T10:42:00Z
Updated
2005-03-10T11:41:53Z
Created

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
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