358 citations · 2.3k across the 35 of their papers we have counts for
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Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas
G. G. Howes, W. Dorland, S. C. Cowley +4
This letter presents the first ab initio, fully electromagnetic, kinetic simulations of magnetized turbulence in a homogeneous, weakly collisional plasma at the scale of the ion La…
Dissipation-Scale Turbulence in the Solar Wind
Gregory G. Howes, Steven C. Cowley, William Dorland +3
We present a cascade model for turbulence in weakly collisional plasmas that follows the nonlinear cascade of energy from the large scales of driving in the MHD regime to the small…
Preserving Monotonicity in Anisotropic Diffusion
Prateek Sharma, Gregory W. Hammett
We show that standard algorithms for anisotropic diffusion based on centered differencing (including the recent symmetric algorithm) do not preserve monotonicity. In the context of…
A Model of Turbulence in Magnetized Plasmas: Implications for the Dissipation Range in the Solar Wind
Gregory G. Howes, Steven C. Cowley, William Dorland +3
This paper studies the turbulent cascade of magnetic energy in weakly collisional magnetized plasmas. A cascade model is presented, based on the assumptions of local nonlinear ener…
Electron Heating in Hot Accretion Flows
Prateek Sharma, Eliot Quataert, Gregory W. Hammett +1
Local (shearing box) simulations of the nonlinear evolution of the magnetorotational instability in a collisionless plasma show that angular momentum transport by pressure anisotro…
Astrophysical Gyrokinetics: Basic Equations and Linear Theory
Gregory G. Howes, Steven C. Cowley, William Dorland +3
Magnetohydrodynamic (MHD) turbulence is encountered in a wide variety of astrophysical plasmas, including accretion disks, the solar wind, and the interstellar and intracluster med…
Magnetised plasma turbulence in clusters of galaxies
A. A. Schekochihin, S. C. Cowley, R. M. Kulsrud +2
Cluster plasmas are magnetised already at very low magnetic field strength. Low collisionality implies that conservation of the first adiabatic invariant results in an anisotropic…
Transition from collisionless to collisional MRI
Prateek Sharma, Gregory W. Hammett, Eliot Quataert
Recent calculations by Quataert et al. (2002) found that the growth rates of the magnetorotational instability (MRI) in a collisionless plasma can differ significantly from those c…
The Magnetorotational Instability in a Collisionless Plasma
Eliot Quataert, William Dorland, Greg Hammett
We consider the linear axisymmetric stability of a differentially rotating collisionless plasma in the presence of a weak magnetic field; we restrict our analysis to wavelengths mu…