Four-colour photometry of HD 92024, the Beta Cephei and eclipsing variable in the cluster NGC 3293

Details Four-colour photometry of HD 92024, the Beta Cephei and eclipsing variable in the cluster NGC 3293 Four-colour photometry of HD 92024, the Beta Cephei and eclipsing variable in the cluster NGC 3293

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.257..303j&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 257, no. 2, July 15, 1992, p. 303-308. Research support

Astronomy and Astrophysics

Astronomy

12

Astronomical Photometry, Cepheid Variables, Eclipsing Binary Stars, Open Clusters, Ubv Spectra, Ephemerides, Power Spectra, Stellar Magnitude, Stellar Oscillations

Scientific paper

This paper presents uvby observations of HD 92024, obtained on nine nights in 1985, two nights in 1989 and 17 nights in 1990. Engelbrecht and Balona's value of the dominant pulsation period is confirmed and an improved eclipse ephemeris is derived. Finally, the u-to-y amplitude ratio is used to show that the star is not a radial, but rather a quadrupole pulsator.

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