The Early-Type Variables

Details The Early-Type Variables The Early-Type Variables

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.230...17b&link_type=abstract

Astrophysics and Space Science, Volume 230, Issue 1-2, pp. 17-28

Astronomy and Astrophysics

Astrophysics

7

Early-Type Stars, Pulsation

Scientific paper

We review the observational status of several different kinds of intrinsic variables among the early-type stars and attempt to interpret the variations in terms of our current understanding of stellar pulsation. Four distinct types of intrinsic variable can be defined: theβ Cep, 53 Per,ζ Oph and λ Eri stars. A simple observational classification scheme, which is readily interpreted in terms of pulsation properties, is proposed. The limits of the instability strip and pulsation constants for theβ Cep and 53 Per stars is discussed. Problems with the interpretation of λ Eri stars in terms of pulsation are pointed out. The observations are consistent with rotational modulation. A problem with mode identification in λ Eri stars is discussed.

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