The eclipsing binary system AB Cas: binarity and pulsation} \mail{(star ) Tables 1 and 2 will be accessible only in electronic form at the CDS

Details The eclipsing binary system AB Cas: binarity and pulsation} \mail{(star ) Tables 1 and 2 will be accessible only in electronic form at the CDS The eclipsing binary system AB Cas: binarity and pulsation} \mail{(star ) Tables 1 and 2 will be accessible only in electronic form at the CDS

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...340..196r&link_type=abstract

Astronomy and Astrophysics, v.340, p.196-202 (1998)

Astronomy and Astrophysics

Astrophysics

21

Techniques: Photometric, Stars: Oscillations, Stars: Individual: Ab Cas, Stars: Variables: Delta Sct, Stars: Binaries: Eclipsing

Scientific paper

This paper presents uvby light curves for the Algol-type binary system AB Cas, in which the primary component is a delta Sct-type pulsating star. Additional Crawford H_β data were also obtained. A detailed photometric analysis based on these observations is presented for both binarity and pulsation. The Wilson-Devinney code was used as the most appropriate for modelling the binary light curve whereas the pulsation of the primary component is analysed using the Fourier Transform and classical O-C methods. The pulsation analysis suggests the hotter component as monoperiodic with a period P_p=0.(d) 05828741 oscillating in the fundamental radial mode. It is also shown that binarity, in this case, has no special effect on the pulsation.

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