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B Stars with and without emission lines, parts 1 and 2

A. B. Underhill, V. Doazan

Abstract

The spectra for B stars for which emission lines occur not on the main sequence, but only among the supergiants, and those B stars for which the presence of emission in H ahlpa is considered to be a significant factor in delineating atmospheric structure are examined. The development of models that are compatible with all known facts about a star and with the laws of physics is also discussed.

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Key concepts: Stars, Supergiant, Astrophysics, Physics, Emission spectrum, Astronomy, Spectral line, Star (game theory)