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Preferred term

Shell stars  

Definition

  • A main-sequence star, usually of spectral class B to F, whose spectrum shows bright emission lines superimposed on the normal absorption lines. The emission spectrum is explained by the presence of a circumstellar shell of gas surrounding the star at the equator. Shell stars are fast rotators. (en)

Broader concept

Editorial note

URI

http://astrothesaurus.org/uat/1850

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