Statistical physical parameter properties of Ap/Bp-stars in the Orion OB1 Association

Abstract

The article presents the results of physical parameters ( 𝑇 eff , log 𝑔 , 𝐿 , 𝑀 , 𝑅 , 𝑣 𝑒 sin 𝑖 , 𝑣 𝑒 ) study for chemically peculiar stars in the Orion OB1 association. Spectral material of circularly polarized radiation for all CP stars was obtained at the 6-m BTA telescope in the SAO RAS. As a result, no statistical differences were found between magnetic and non-magnetic CP stars of the association. The difference was found for the projection of rotation velocity parameter 𝑣 𝑒 sin 𝑖 . However, a detailed study of the equatorial velocity 𝑣 𝑒 showed that the average value for magnetic does not differ from non-magnetic Ap/Bp stars.