175 citations · 910 across the 8 of their papers we have counts for
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Global Modeling of Spur Formation in Spiral Galaxies
Rahul Shetty, Eve C. Ostriker
We investigate the formation of substructure in spiral galaxies using global MHD simulations, including gas self-gravity. Our models extend previous local models by Kim and Ostrike…
Three-Dimensional Simulations of Parker, Magneto-Jeans, and Swing Instabilities in Shearing Galactic Gas Disks
Woong-Tae Kim, Eve C. Ostriker, James M. Stone
We use 3D MHD simulations to investigate nonlinear development of the Parker, magneto-Jeans (MJI), and swing mechanisms in galactic disks. The model disks are local, isothermal, an…
Formation and Fragmentation of Gaseous Spurs in Spiral Galaxies
Woong-Tae Kim, Eve C. Ostriker
Intermediate-scale spurs are common in spiral galaxies, but perhaps most distinctively evident in a recent HST image of M51 (Scoville & Rector 2001). We investigate, using time-dep…
Amplification, Saturation, and Q Thresholds for Runaway: Growth of Self-Gravitating Structures in Models of Magnetized Galactic Gas Disks
Woong-Tae Kim, Eve C. Ostriker
We investigate the susceptibility of gaseous, magnetized galactic disks to formation of self-gravitating condensations using two-dimensional, local models. We focus on two issues:…
Hyper- and suspended-accretion states of rotating black holes and the durations of gamma-ray bursts
Maurice H. P. M. van Putten, Eve C. Ostriker
We analyze the temporal evolution of accretion onto rotating black holes subject to large-scale magnetic torques. Wind torques alone drive a disk towards collapse in a finite time…