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ESA Data Ontology

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... > Stellar astronomy > Stellar types > Stellar evolutionary types > Evolved stars > Giant stars > S stars
Stellar astronomy > Stellar types > Stellar spectral types > S stars
Stellar astronomy > Stellar types > Chemically peculiar stars > Heavy metal stars > S stars
... > Stellar astronomy > Stellar types > Stellar evolutionary types > Evolved stars > Giant stars > Late-type giant stars > Heavy metal stars > S stars
... > Stellar astronomy > Stellar types > Late-type stars > Late-type giant stars > Heavy metal stars > S stars
Stellar astronomy > Stellar types > Late-type stars > S stars

Preferred term

S stars  

Definition

  • A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and technetium. Almost all S stars are long-period variables. (en)

Broader concept

Narrower concepts

Entry terms

  • Se stars (en)
  • S type stars (en)
  • S-type stars (en)
  • Type-S stars (en)

Contributor

Editorial note

URI

http://astrothesaurus.org/uat/1421

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