TESTING CONVERGENCE FOR GLOBAL ACCRETION DISKS

• Published in: The Astrophysical journal Vol. 772; no. 2; pp. 1 - 17
• Main Authors: Hawley, John F, Richers, Sherwood A, Guan, Xiaoyue, Krolik, Julian H
• Format: Journal Article
• Language: English
• Published: United States 01.08.2013
• Subjects: ACCRETION DISKS; ALGORITHMS; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BLACK HOLES; Brackets; BRIGHTNESS; CONVERGENCE; Flux; Initial conditions; Instability; INTERPOLATION; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; SIMULATION; Solvers; SYMMETRY; TURBULENCE; WAVELENGTHS

Global disk simulations provide a powerful tool for investigating accretion and the underlying magnetohydrodynamic turbulence driven by magneto-rotational instability (MRI). We use the flux-conservative Athena code to conduct a series of experiments on disks having a variety of magnetic topologies t...