52 citations · 135 across the 9 of their papers we have counts for
10 papers
Suppression of spiral density waves in collisionless accretion flows
Stephen Majeski, Matthew W. Kunz, Jason Dexter
Spiral density waves are ubiquitous phenomena in differentially rotating flows. They are non-modal, non-axisymmetric perturbations that, due to shear in the background flow, posses…
Transport of electrons in tangled magnetic fields
Daniel Verscharen, Natasha Jeffrey, Anton Artemyev +6
Cosmic magnetic fields are typically inhomogeneous and often highly tangled due to large-scale plasma flows, turbulence, and instabilities. If the variations in the magnetic field…
Cosmic-ray transport in inhomogeneous media
Robert J. Ewart, Patrick Reichherzer, Shuzhe Ren +6
A theory of cosmic-ray transport in multi-phase diffusive media is developed, with the specific application to cases in which the cosmic-ray diffusion coefficient has large spatial…
Self-Similar Cosmic-Ray Transport in High-Resolution Magnetohydrodynamic Turbulence
Philipp Kempski, Drummond B. Fielding, Eliot Quataert +5
We study the propagation of cosmic rays (CRs) through a simulation of magnetohydrodynamic (MHD) turbulence at unprecedented resolution of . We drive turbulence that is…
A Unified Model of Cosmic Ray Propagation and Radio Extreme Scattering Events from Intermittent Interstellar Structures
Philipp Kempski, Dongzi Li, Drummond B. Fielding +5
Intermittent magnetic structures are a plausible candidate for explaining cosmic-ray (CR) diffusion rates derived from observed CR energy spectra. Independently, studies of extreme…
Collisionless conduction in a high-beta plasma: a collision operator for whistler turbulence
Evan L. Yerger, Matthew W. Kunz, Archie F. A. Bott +1
The regulation of electron heat transport in high-beta, weakly collisional, magnetized plasma is investigated. A temperature gradient oriented along a mean magnetic field can induc…
Cosmic-ray confinement in radio bubbles by micromirrors
Robert J. Ewart, Patrick Reichherzer, Archie F. A. Bott +2
Radio bubbles, ubiquitous features of the intracluster medium around active galactic nuclei, are known to rise buoyantly for multiple scale heights through the intracluster medium…
Efficient micromirror confinement of sub-TeV cosmic rays in galaxy clusters
Patrick Reichherzer, Archie F. A. Bott, Robert J. Ewart +4
Cosmic rays (CRs) play a pivotal role in shaping the thermal and dynamical properties of astrophysical environments, such as galaxies and galaxy clusters. Recent observations sugge…
Time-resolved fast turbulent dynamo in a laser plasma
A. F. A. Bott, P. Tzeferacos, L. Chen +25
Understanding magnetic-field generation and amplification in turbulent plasma is essential to account for observations of magnetic fields in the universe. A theoretical framework a…
Pressure-anisotropy-driven microturbulence and magnetic-field evolution in shearing, collisionless plasma
S. Melville, A. A. Schekochihin, M. W. Kunz
The nonlinear state of a high-beta collisionless plasma is investigated when an imposed linear shear amplifies or diminishes a uniform magnetic field, driving pressure anisotropies…