Rovibrational excitation of HD in collisions with atomic and molecular hydrogen

Details Rovibrational excitation of HD in collisions with atomic and molecular hydrogen Rovibrational excitation of HD in collisions with atomic and molecular hydrogen

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.309..833f&link_type=abstract

Monthly Notices, Volume 309, Issue 4, pp. 833-835.

Computer Science

14

Scientific paper

We have computed cross-sections and rate coefficients for rovibrational transitions in HD, induced by collisions with atomic and molecular hydrogen. We employed fully quantum-mechanical methods and the potential of Boothroyd et al. for H-HD, and that of Schwenke for H2-HD. The rate coefficients for vibrational relaxation v=1->0 of HD are compared with the corresponding values for H2. The influence of vibrationally excited channels on the rate coefficients for rotational transitions within the v=0 vibrational ground state of HD is shown to be small at T=500K, where T is the kinetic temperature. The rate coefficients, for 100<=T<=2000K, are available from http://ccp7.dur.ac.uk/.

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