Rotational excitation of hydrogen molecules by collisions with hydrogen atoms

Details Rotational excitation of hydrogen molecules by collisions with hydrogen atoms Rotational excitation of hydrogen molecules by collisions with hydrogen atoms

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231l.101g&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 231, July 15, 1979, p. L101-L103.

Other

32

Atomic Collisions, Gas-Gas Interactions, Hydrogen Atoms, Hydrogen Clouds, Interstellar Gas, Molecular Excitation, Molecular Rotation, Scattering Cross Sections, Molecular Collisions, Ortho Hydrogen, Para Hydrogen, Quantum Mechanics

Scientific paper

Rate constants for rotational excitation of hydrogen molecules by collisions with hydrogen atoms have been obtained from quantum-mechanical calculations for kinetic temperatures between 100 and 5000 K. These calculations involve the rigid-rotator approximation, but other possible sources of error should be small. The calculations indicate that the early values of Nishimura are larger than accurate rigid-rotator values by about a factor of 20 or more.

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