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Dust in H II Regions

Published online by Cambridge University Press:  14 August 2015

Vahe Petrosian
Vahe Petrosian*
Affiliation:
Institute for Plasma Research, Stanford University, Stanford, Calif., U.S.A.

Abstract

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The observed far infrared flux of H II regions is interpreted as evidence for the presence of internal dust absorbing a fraction of Lyman continuum photons. The effect of this dust on the required number of ionizing photons and on the helium to hydrogen line intensity ratios are discussed and analytic formulae describing these effects are presented for simplified models.

Type
Part VIII Dust and H II Regions
Information
Symposium - International Astronomical Union , Volume 52: Interstellar Dust and Related Topics , 1973 , pp. 445 - 452
Copyright
Copyright © Reidel 1973 

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