Published June 1989 | Version v1
Journal article

Collision-induced infrared spectra of H2-He pairs at temperatures from 18 to 7000 K. II. Overtone and hot bands

  • 1. Texas Univ., Austin (USA)
  • 2. Joint Institute for Laboratory Astrophysics, Boulder, CO (USA)

Description

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

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
341
Series
Astrophys. J.
Journal Page Range
549-555
ISSN
0004-637X
CODEN
ASJOA