Physics – General Physics
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phrva..35..632f&link_type=abstract
Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 35, Jan. 15, 1987, p. 632-638.
Physics
General Physics
34
Absorption Spectra, Dipole Moments, Helium, Hydrogen, Molecular Collisions, Vibrational Spectra, Abundance, Line Spectra, Molecular Rotation
Scientific paper
The work of Meyer and Frommhold (1986) is extended to obtain the collision-induced absorption (CIA) spectra involving vibrational transitions from the hydrogen ground state to the lowest excited vibrational state of H2. From the induced dipole components, the CIA spectra of the collisional complex of hydrogen and helium are computed in the fundamental band of hydrogen using an exact quantum formalism. Both the shape of the computed spectral profiles and the theoretical absolute intensity are found to agree with existing measurements at temperatures from 18-300 K, and the ability to obtain such spectra from theory at temperatures where no measurements exist may have consequences for research relating to the atmospheres of the giant planets and late-type stars.
Frommhold Lothar
Meyer Wilfried
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