On the torque exerted by a warped, magnetically threaded accretion disk

Most astrophysical accretion disks are likely to be warped. In X-ray binaries, the spin evolution of an accreting neutron star is critically dependent on interaction between magnetic field and disk. There have been extensive investigations torque exerted by a coplanar disk that magnetically threaded lines from stars, but relevant works warped/tilted still lacking. this paper we develop simplified two-component model, in which comprised inner part outer, tilted part. Based standard assumption formation toroidal component, derive dimensionless show warped/titled more up compared with We also discuss possible influence various initial parameters torque.