Issues

 / 

2012

 / 

February

  

Reviews of topical problems


Flow structure in magnetic close binary stars

 a, b,  a,  a
a Institute of Astronomy, Russian Academy of Sciences, ul. Pyatnitskaya 48, Moscow, 119017, Russian Federation
b Chelyabinsk State University, ul. Bratev Kashirinykh 129, Chelyabinsk, 454021, Russian Federation

The current understanding of mass exchange processes between close binary system (CBS) components is reviewed, with particular attention on the mass flow structure and accretion disk physics. Using 3D MHD calculation results, the variation of key accretion disk characteristics with the accretor magnetic field is studied and the magnetic field generation process is analyzed. In particular, it is shown that the quasi-periodic process of toroidal magnetic field generation in disks results in alternating accretion and decretion regimes in the inner regions of the disk. By treating MHD flows in CBSs self-consistently, disk formation conditions are established and a separation criterion between intermediate-polar and polar flows is found. The possibility of using MHD simulation results for explaining observations is discussed.

Text can be downloaded in Russian. English translation is available on IOP Science.
PACS: 52.30.−q, 97.10.Gz, 97.80.−d (all)
DOI: 10.3367/UFNe.0182.201202a.0121
URL: https://ufn.ru/en/articles/2012/2/a/
Citation: Zhilkin A G, Bisikalo D V, Boyarchuk A A "Flow structure in magnetic close binary stars" Phys. Usp. 55 115–136 (2012)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Received: 17th, May 2011, revised: 14th, July 2011, 15th, July 2011

Оригинал: Жилкин А Г, Бисикало Д В, Боярчук А А «Структура течения в тесных двойных звёздах с учётом магнитного поля» УФН 182 121–145 (2012); DOI: 10.3367/UFNr.0182.201202a.0121

References (105) Cited by (22) Similar articles (20)

© 1918–2019 Uspekhi Fizicheskikh Nauk
Email: ufn@ufn.ru Editorial office contacts About the journal Terms and conditions