CAOSP abstracts, Volume: 50, No.: 2, year: 2020

Author(s): Paunzen, E.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 2, p. 570-573.
Date: 3/2020
Title: Binary fraction of magnetic chemically peculiar stars
Keyword(s): binaries: general, stars: chemically peculiar, stars: magnetic fields
Pages: 570 -- 573
DOI: https://doi.org/10.31577/caosp.2020.50.2.570
NASA ADS Abstract Service: 2020CoSka..50..570P
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: Magnetic chemically peculiar stars of the upper main sequence are slowly rotating early B to early F-type objects with elemental overabundances of several orders of magnitude compared to the Sun. The driving mechanism is diffusion in the calm stellar atmosphere intensified by the presence of a stable organized magnetic field. The binary fraction is vital to understanding the formation and evolution of these objects as well as possible operating angular momentum loss mechanisms. The available literature on the binary fraction is reviewed and a list of needed future working steps is presented.