Mode identification in Beta Cephei stars from visual and UV observations. I - Beta Cephei, Delta Ceti and Sigma Scorpii

Details Mode identification in Beta Cephei stars from visual and UV observations. I - Beta Cephei, Delta Ceti and Sigma Scorpii Mode identification in Beta Cephei stars from visual and UV observations. I - Beta Cephei, Delta Ceti and Sigma Scorpii

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aca....42..191c&link_type=abstract

Acta Astronomica (ISSN 0001-5237), vol. 42, no. 3, p. 191-209.

Astronomy and Astrophysics

Astronomy

7

B Stars, Cepheid Variables, Radial Velocity, Stellar Oscillations, Ultraviolet Astronomy, Visual Observation, Stellar Atmospheres, Stellar Models, Stellar Temperature

Scientific paper

The well-known pulsating Beta Cephei stars, Beta Cep, Delta Cet, and Sigma Sco, are investigated using published data on light and radial velocity fluctuations. Visual and UV light amplitudes, radial velocities, and phase shifts are analyzed using a method elaborated by Watson (1988). Model calculations are based on the standard atmosphere models, with allowance made for temperature and pressure changes during the pulsation cycle. Consistent sets of parameters are presented for the three variables.

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