The Progenitors of Be-stars Paired with O-subdwarfs:The Spin-up of a Be Star at the Stage of Conservative Mass Exchange  

作　　者：Evgeny Staritsin 

机构地区：[1]K.A.Barkhatova Kourovka Astronomical Observatory,B.N.Yeltsin Ural Federal University,pr.Lenina 51,Ekaterinburg 620000,Russia

出　　处：《Research in Astronomy and Astrophysics》2024年第11期104-111,共8页天文和天体物理学研究（英文版）

基　　金：supported by the Ministry of Science and Education,FEUZ-2020-0038。

摘　　要：The spinning-up of the accreting component in the process of conservative mass exchange is considered in binary systems—progenitors of systems consisting of a main sequence Be-star and an O-subdwarf.During the mass exchange,the meridional circulation transfers 80%-85%of the angular momentum that entered the accretor together with the accreted matter to the accretor surface.This angular momentum is removed from the accretor by the disk.When the mass exchange finishes,the accretor has a rotation typical of classical Be-type stars.

关 键 词：(stars:)binaries(including multiple) close-stars emission-line-Be-(stars:)binaries general 

分 类 号：P153[天文地球—天文学]