Collision-induced infrared spectra of H2-He pairs at temperatures from 18 to 7000 K. II. Overtone and hot bands
- Joint Institute for Laboratory Astrophysics, Boulder, CO (USA)
The three lowest spectral moments of the collision induced absorption (CIA) spectra of H2-He pairs have been computed from first principles for temperatures T from 18 to 7000 K for a number of hydrogen overtone and hot bands involving vibrational quantum numbers nu = 0, 1, 2, 3 yields nu-prime = 0, 1, 2, 3. The data are given in a form suitable for the computation of CIA spectra of H2-He as function of frequency and temperature, using simple computer codes and model line shapes. The work is of interest for the spectroscopy of the atmospheres of the outer planets and of stars that contain neutral molecular hydrogen and helium (late stars, white dwarfs, and Population II stars) in the infrared and visible region of the spectrum. 13 refs.
- OSTI ID:
- 5642348
- Journal Information:
- Astrophysical Journal; (USA), Vol. 341; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
PLANETARY ATMOSPHERES
SPECTROSCOPY
STELLAR ATMOSPHERES
ABSORPTION
ABSORPTION SPECTRA
ATOM COLLISIONS
COMPUTER CODES
HELIUM
HYDROGEN
INFRARED SPECTRA
QUANTUM NUMBERS
TEMPERATURE DEPENDENCE
ATMOSPHERES
COLLISIONS
ELEMENTS
FLUIDS
GASES
NONMETALS
RARE GASES
SPECTRA
640107* - Astrophysics & Cosmology- Planetary Phenomena
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources