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WIND ACCRETION TO MAGNETIZED STARS

WIND ACCRETION TO DIPOLE IN THE PROPELLER REGIME

I. STATIONARY STAR 

MHD Simulations of Accretion to a Star in the "Propeller" Regime

This work investigates spherical accretion to a rotating magnetized star in the "propeller" regime using axisymmetric resistive, magnetohydrodynamic simulations. In this regime accreting matter tends to be expelled from the equatorial region of the magnetosphere where the centrifugal force on matter rotating with the star exceeds the gravitational force. 

[abstract] [full text] [plots from the paper] [animation]

II. MOVING STAR 

Spinning-Down of Moving Magnetars in the Propeller Regime

Using axisymmetric MHD simulations we have studied the supersonic propagation through the ISM of magnetars in the propeller stage. We have done many simulation runs for the purpose of determining the angular momentum loss rate of the star due to the interaction of its magnetosphere with the shocked ISM. 

[abstract] [full text] [plots from the paper] [animation]

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2000-2011, last updated on 19.03.11