Three known and twenty-two new variable stars of early spectral type

Details Three known and twenty-two new variable stars of early spectral type Three known and twenty-two new variable stars of early spectral type

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97..421j&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 2, p. 421-434.

Astronomy and Astrophysics

Astrophysics

19

Astronomical Photometry, B Stars, Early Stars, Electrophotometers, Stellar Spectra, Variable Stars, Astronomical Catalogs, Least Squares Method, Stellar Oscillations

Scientific paper

Photoelectric photometry is reported of three known and 22 new variables, all brighter than V = 7.5 mag. The three known ones are: the ellipsoidal variable 42 (V467) Per, the Beta Cep-type star HR 6684 = V2052 Oph, and the eclipsing variable HR 8854 = V649 Cas. The new variable stars are listed. They include two Beta Cep candidates, one eclipsing and three ellipsoidal variables, a 'mid-B' variable, an Alpha(2) CVn variable, and two Lambda Eri stars. The twelve remaining new variables could not be classified because of insufficient data. The Lambda Eri variables found in the present investigation, together with some examples from the literature, indicate that rotational modulation occurs not only in Be, but also in normal B stars.

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