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arXiv · 1308.3168

Binary and multiple magnetic Ap/Bp stars. Proceedings of IAUS 302: Magnetic fields throughout stellar evolution

D. A. Rastegaev·Yu. Yu. Balega·V. V. Dyachenko·A. F. Maksimov·E. V. Malogolovets
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Abstract

We present the results of speckle interferometric observations of 273 magnetic stars most of which are Ap/Bp type. All observations were made at the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences. We resolved 58 binary and 5 triple stars into individual components. Almost half of these stars were astrometrically resolved for the first time. The fraction of speckle interferometric binaries/multiples in the sample of stars with confirmed magnetic fields is 23%. We expect that the total fraction of binaries/multiples in the sample with account for spectroscopic short-period systems and wide common proper motion pairs can be twice higher. The detected speckle components have a prominent peak in the ρ distribution that corresponds to the closest resolved pairs.

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D. A. Rastegaev, Yu. Yu. Balega, V. V. Dyachenko, A. F. Maksimov, E. V. Malogolovets. 2013-09-04. Binary and multiple magnetic Ap/Bp stars. Proceedings of IAUS 302: Magnetic fields throughout stellar evolution. https://arxiv.org/abs/1308.3168

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