Departures from the Saha Equation for Ionized Helium. I. Condition of Detailed Balance in the Resonance Lines.
Abstract
Conditions for the validity of the assumption of detailed balance in the Lyman lines of He ii are investigated. An opacity of 106 in Lyman-a is required, which implies high opacity in the subordinate lines and resonance continuum. The are computed, including the transfer problem in the subordinate lines and resonance continuum.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1961
- DOI:
- 10.1086/147061
- Bibcode:
- 1961ApJ...133..588T