Mechanism for cyclical activity of the Herbig Ae star BF Ori |
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| Authors: | V. P. Grinin A. N. Rostopchina O. Yu. Barsunova T. V. Demidova |
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| Affiliation: | 1.Main Astronomical Observatory,Russian Academy of Sciences,St. Petersburg,Russia;2.V. V. Sobolev Institute of Astronomy,St. Petersburg State University,St. Petersburg,Russia;3.Crimean Astrophysical Observatory,Nauchnyi,Ukraine |
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| Abstract: | The photometric activity of the star BF Ori, which belongs to the family of UX Ori-type stars, is studied. New data obtained with the ASAS robotic telescope confirm the existence of a cyclical component in the light curve for this star with a duration of roughly 11-12 years. The form of the photometric cycle resembles the theoretical light curves for a young binary system with a low-mass secondary component, and which is accreting matter from a surrounding common disk. Alternative mechanisms for the cyclical variability of UX Ori stars are also discussed. |
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