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Concept information

stellar astronomy > stellar type > particular star > chemically peculiar star

Preferred term

chemically peculiar star  

Definition

  • A main sequence star of spectral type A or B identified by the presence of anomalously strong or weak absorption lines of certain elements in their spectra. CP stars have been divided into four main classes on the basis of their spectra: 1) non-magnetic metallic-lined (CP1, Am star), magnetic (CP2, Ap star), non-magnetic mercury-manganese (CP3, HgMn star), and helium-weak (CP4, He-weak star). (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=chemically+peculiar+star&formSubmit=Search&showAll=1)

Broader concept

Entry terms

  • CP star

In other languages

URI

http://data.loterre.fr/ark:/67375/MDL-X97MM1WB-3

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