Abstract
view Abstract Citations (74) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Effects of Self-Absorption and Internal Dust on Hydrogen-Line Intensities in Gaseous Nebulae Cox, Donald P. ; Mathews, William G. Abstract A general method for computing hydrogenic recombination decrements in gaseous nebulae is de- scribed. The effects of any combination of partial Lyman-line leakage (for cases intermediate between case A and case B), Balmer-line self-absorption, and internal dust can be calculated from known case A decrements. In particular, for a homogeneous spherical nebula, we have calculated the combined effects of Balmer-line self-absorption and partial Lyman-line leakage in terms of optical depths in Ha and Lyman a. The relevance of these calculations for real nebulae is discussed. Finally, the influence of small graphite grains and other particles within the nebula on the Balmer decrement is discussed Publication: The Astrophysical Journal Pub Date: March 1969 DOI: 10.1086/149916 Bibcode: 1969ApJ...155..859C full text sources ADS | data products SIMBAD (3)
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