Rate coefficients for ro-vibrational transitions in H2 due to collisions with He

N. Balakrishnan, M. Vieira, J. F. Babb, A. Dalgarno, R. C. Forrey, S. Lepp

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We present quantum mechanical and quasi-classical trajectory calculations of cross sections for ro-vibrational transitions in ortho- and para-H2 induced by collisions with He atoms. Cross sections were obtained for kinetic energies between 10-4 and 3 eV, and the corresponding rate coefficients were calculated for the temperature range 100 K ≤ T ≤ 4000 K. Comparisons are made with previous calculations.

Original languageEnglish (US)
Pages (from-to)1122-1130
Number of pages9
JournalAstrophysical Journal
Issue number2 PART 1
StatePublished - Oct 20 1999

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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