%0 Journal Article %1 Shafee2008 %A Shafee, Rebecca %A Mckinney, Jonathan C %A Narayan, Ramesh %A Tchekhovskoy, Alexander %A Gammie, Charles F %A Mcclintock, Jeffrey E %D 2008 %J The Astrophysical Journal %K 2008 MHD accretion binaries black-holes numerical %N 2 %P 25--28 %T Three-dimensional simulations of magnetized thin accretion disks around black holes: stress in the plunging region %V 687 %X We describe three-dimensional general relativistic magnetohydrodynamic simulations of a geometrically thin accretion disk around a nonspinning black hole. The disk has a thickness h/r ∼ 0.05–0.1 over the radial range (2–20)GM/c 2. In steady state, the specific angular momentum profile of the inflowing magnetized gas deviates by less than 2\% from that of the standard thin disk model of Novikov and Thorne. Also, the magnetic torque at the radius of the innermost stable circular orbit (ISCO) is only ∼2\% of the inward flux of angular momentum at this radius. Both results indicate that magnetic coupling across the ISCO is relatively unimportant for geo- metrically thin disks.

@article{Shafee2008, abstract = {We describe three-dimensional general relativistic magnetohydrodynamic simulations of a geometrically thin accretion disk around a nonspinning black hole. The disk has a thickness h/r ∼ 0.05–0.1 over the radial range (2–20)GM/c 2. In steady state, the specific angular momentum profile of the inflowing magnetized gas deviates by less than 2\% from that of the standard thin disk model of Novikov and Thorne. Also, the magnetic torque at the radius of the innermost stable circular orbit (ISCO) is only ∼2\% of the inward flux of angular momentum at this radius. Both results indicate that magnetic coupling across the ISCO is relatively unimportant for geo- metrically thin disks.}, added-at = {2013-08-04T11:19:29.000+0200}, author = {Shafee, Rebecca and Mckinney, Jonathan C and Narayan, Ramesh and Tchekhovskoy, Alexander and Gammie, Charles F and Mcclintock, Jeffrey E}, biburl = {https://www.bibsonomy.org/bibtex/2348477acd0b0f06f7f33f021c0b11228/danielcarrera}, file = {:home/daniel/Downloads/593148.pdf:pdf}, interhash = {fb4f0c5023784a4780cfb9d02d23fa90}, intrahash = {348477acd0b0f06f7f33f021c0b11228}, journal = {The Astrophysical Journal}, keywords = {2008 MHD accretion binaries black-holes numerical}, number = 2, pages = {25--28}, timestamp = {2013-08-04T19:01:11.000+0200}, title = {{Three-dimensional simulations of magnetized thin accretion disks around black holes: stress in the plunging region}}, volume = 687, year = 2008 }