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A constrained-transport magnetohydrodynamics algorithm with near-spectral resolution
Jason Maron, Mordecai-Mark Mac Low, Jeffrey Oishi
Numerical simulations including magnetic fields have become important in many fields of astrophysics. Evolution of magnetic fields by the constrained transport algorithm preserves…
Supplementary Information for ``Rapid planetesimal formation in turbulent circumstellar discs''
Anders Johansen, Jeffrey S. Oishi, Mordecai-Mark Mac Low +3
This document contains refereed supplementary information for the paper ``Rapid planetesimal formation in turbulent circumstellar discs''. It contains 15 sections (\S1.1 -- \S1.15)…
Rapid planetesimal formation in turbulent circumstellar discs
Anders Johansen, Jeffrey S. Oishi, Mordecai-Mark Mac Low +3
The initial stages of planet formation in circumstellar gas discs proceed via dust grains that collide and build up larger and larger bodies (Safronov 1969). How this process conti…
Turbulent Torques on Protoplanets in a Dead Zone
Jeffrey S. Oishi, Mordecai-Mark Mac Low, Kristen Menou
Migration of protoplanets in their gaseous host disks may be largely responsible for the observed orbital distribution of extrasolar planets. Recent simulations have shown that the…
Dynamical Expansion of H II Regions from Ultracompact to Compact Sizes in Turbulent, Self-Gravitating Molecular Clouds
Mordecai-Mark Mac Low, Jayashree Toraskar, Jeffrey S. Oishi +1
The nature of ultracompact H II regions (UCHRs) remains poorly determined. In particular, they are about an order of magnitude more common than would be expected if they formed aro…
The Inability of Ambipolar Diffusion to set a Characteristic Mass Scale in Molecular Clouds
Jeffrey S. Oishi, Mordecai-Mark Mac Low
We investigate the question of whether ambipolar diffusion (ion-neutral drift) determines the smallest length and mass scale on which structure forms in a turbulent molecular cloud…