On the Pressure-Induced Opacity of Molecular Hydrogen in Late-Type Stars
Abstract
The pressure-induced opacity resulting from binary collisions of hydrogen molecules with each other and with helium atoms is computed for temperatures typical of the photospheres of late-type stars. The opacity is effectively continuous throughout the infrared, and consists of overlapping translational, rota- tional, and vibrational transitions in the hydrogen molecule. For temperatures less than roughly 25000 K, depending on the pressure, this should be the primary source of continuous opacity in stellar photospheres between the wavelengths of 1 and 10 /L. Algorithms are given for this opacity that are useful in calculations of stellar atmospheres. I. INTRODUCTIO
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1969
- DOI:
- 10.1086/150030
- Bibcode:
- 1969ApJ...156..989L