Rotational excitation of HF in collision with He

DOI

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.

Identifier
DOI http://doi.org/10.26093/cds/vizier.34301139
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/430/1139
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/430/1139
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/430/1139
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/430/1139
Provenance
Creator Reese C.; Stoecklin T.; Voronin A.; Rayez J.C.
Publisher CDS
Publication Year 2005
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Interdisciplinary Astronomy; Natural Sciences; Physics