Browsing by Author "Shafee, Rebecca"
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Simulations of magnetized discs around black holes: Effects of black hole spin, disc thickness and magnetic field geometry
Penna, Robert; McKinney, Jonathan C.; Narayan, Ramesh; Tchekhovskoy, Alexander; Shafee, Rebecca; McClintock, Jeffrey E. (Oxford University Press (OUP), 2010)The standard general relativistic model of a razor-thin accretion disc around a black hole, developed by Novikov & Thorne (NT) in 1973, assumes the shear stress vanishes at theradius of the innermost stable circular orbit ... -
Viscous Torque and Dissipation in the Inner Regions of a Thin Accretion Disk: Implications for Measuring Black Hole Spin
Shafee, Rebecca; Narayan, Ramesh; McClintock, Jeffrey E. (IOP Publishing, 2008)We consider a simple Newtonian model of a steady accretion disk around a black hole. The model is based on height-integrated hydrodynamic equations, -viscosity, and a pseudo-Newtonian potential which results in an innermost ...