author={Donald Howard Menzel},
  journal={Publications of the Astronomical Society of the Pacific},
  pages={70 - 70}
  • D. Menzel
  • Published 1 February 1931
  • Physics
  • Publications of the Astronomical Society of the Pacific
Dr. J. A. Carroll has recently published some very important formulae dealing with physical conditions in nebulae. In the course of his study he reaches the conclusion that radiation from the star that is responsible for the nebular luminosity must be diluted by a factor of at least 10. This is to insure that an excited hydrogen atom will return to the ground state before jumping to a still higher energy state through absorption of a quantum of radiation. This result was of special interest to… 
Introduction of coherence in astrophysical spectroscopy
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Propagation of light: Coherent or Monte-Carlo computation ?
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Optical Coherence in Astrophysics: The Powerful Alternative of Big Bang
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Coherent interactions of light with collisionless atomic hydrogen
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Rational astrophysics.
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Low pressure Strömgren spheres
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Lyman α forest of quasars
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Coherent interactions of low pressure atomic hydrogen with light emitted by an extremely hot black source
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Pourquoi faire compliqué (big bang) plutôt que simple (physique ordinaire) en astrophysique
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Absorption spectrum of very low pressure , relatively cold atomic hydrogen
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