Abstract: The continuous radiation from the Orion Nebula has been investigated for five regions from 1' to 19;5 from the Trai)ezium by means of a highly selective interference ~lter system and photographic spectrophotometry. After correction for the component of the continuum due to atomic processes it was concluded that the scattered light of the nebula varies both in wavelength dependence and in intensity relative to the hydrogen recombination spectrum with proj ected position across the nebula. It is shown that the effective dust to gas ratio increases with distance from the hot stars that dominate the radiation within the nebula. The cause of this variation is probably evaporation or selective radiation pressure expulsion of the smaller particles and this phenomenon is closely related to the anomalous reddening law known to exist in the Orion Nebula.
Publication Year: 1965
Publication Date: 1965-01-01
Language: en
Type: article
Indexed In: ['crossref']
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