1. A Simple Analytic Approximation for Dusty STRÖMGREN Spheres
- Author
-
George B. Field, Joseph Silk, and Vahé Petrosian
- Subjects
Physics ,Photon ,Stellar atmosphere ,Astronomy and Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,Computer Science::Computational Geometry ,Far infrared ,Space and Planetary Science ,Ionization ,Lyman continuum photons ,SPHERES ,Astrophysics::Earth and Planetary Astrophysics ,Absorption (electromagnetic radiation) ,Astrophysics::Galaxy Astrophysics ,Cosmic dust - Abstract
An analytic approximation is illustrated to Stromgren's solution for H II regions which permits explicit exhibition of the effects of internal dust on the ionization structure. Far infrared observations of H II regions are accounted for in terms of true absorption by internal dust of a significant fraction of the Lyman continuum photons.
- Published
- 1972
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