387 citations · 393 across the 3 of their papers we have counts for
11 papers · 1 filter
Global General Relativistic MHD Simulation of a Tilted Black-Hole Accretion Disk
P. Chris Fragile, Omer M. Blaes, Peter Anninos +1
This paper presents a continuation of our efforts to numerically study accretion disks that are misaligned (tilted) with respect to the rotation axis of a Kerr black hole. Here we…
Numerical Modeling of the Radio Nebula from the 2004 December 27 Giant Flare of SGR 1806-20
Jay D. Salmonson, P. Chris Fragile, Peter Anninos
We use the relativistic hydrodynamics code Cosmos++ to model the evolution of the radio nebula triggered by the Dec. 27, 2004 giant flare event of soft gamma repeater 1806-20. We p…
Cosmos++: Relativistic Magnetohydrodynamics on Unstructured Grids with Local Adaptive Refinement
Peter Anninos, P. Chris Fragile, Jay D. Salmonson
A new code and methodology are introduced for solving the general relativistic magnetohydrodynamic (GRMHD) equations in fixed background spacetimes using time-explicit, finite-volu…
Magnetohydrodynamic Simulations of Shock Interactions with Radiative Clouds
P. Chris Fragile, Peter Anninos, Kyle Gustafson +1
We present results from two-dimensional numerical simulations of the interactions between magnetized shocks and radiative clouds. Our primary goal is to characterize the dynamical…
Jet-Induced Star Formation: Good News From Big Bad Black Holes
Wil van Breugel, Chris Fragile, Stephen Croft +3
We discuss obbservations and numerical simulations which show that radiative shocks in jet-cloud collisions can trigger the collapse of intergalactic clouds and subsequent star for…
Hydrodynamic Simulations of Tilted Thick-Disk Accretion onto a Kerr Black Hole
P. Chris Fragile, Peter Anninos
We present results from fully general relativistic three-dimensional numerical studies of thick-disk accretion onto a rapidly-rotating (Kerr) black hole with a spin axis that is ti…