668 citations
- Max Planck Institute for AstronomyDE85 papers
- Goddard Space Flight CenterUS80 papers
- Centre National de la Recherche ScientifiqueFR74 papers
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11 papers · 1 filter
The Polish doughnuts revisited I. The angular momentum distribution and equipressure surfaces
L. Qian, M. A. Abramowicz, P. C. Fragile +3
We construct a new family of analytic models of black hole accretion disks in dynamical equilibria. Our construction is based on assuming distributions of angular momentum and entr…
General Relativistic Magnetohydrodynamic Simulations of the Hard State as a Magnetically-Dominated Accretion Flow
P. Chris Fragile, David L. Meier
(Abridged) We present one of the first physically-motivated two-dimensional general relativistic magnetohydrodynamic (GRMHD) numerical simulations of a radiatively-cooled black-hol…
Jet Formation in MHD Simulations
P. Chris Fragile
In this talk I review the current status of jet formation in direct numerical simulations of black-hole accretion disks and magnetospheres. I address the following critical questio…
Application of the Cubed-Sphere Grid to Tilted Black-Hole Accretion Disks
P. Chris Fragile, Christopher C. Lindner, Peter Anninos +1
In recent work we presented the first results of global general relativistic magnetohydrodynamic (GRMHD) simulations of tilted (or misaligned) accretion disks around rotating black…
Remarks on KdV-type Flows on Star-Shaped Curves
Annalisa Calini, Thomas Ivey, Gloria Mari Beffa
We study the relation between the centro-affine geometry of star-shaped planar curves and the projective geometry of parametrized maps into $\RP^1$. We show that projectivization i…
Epicyclic Motions and Standing Shocks in Numerically Simulated Tilted Black-Hole Accretion Disks
P. Chris Fragile, Omer M. Blaes
This work presents a detailed analysis of the overall flow structure and unique features of the inner region of the tilted disk simulations described in Fragile et al. (2007). The…