166 citations · 503 across the 14 of their papers we have counts for
4 papers · 1 filter
Galactic Cosmic-ray Scattering due to Intermittent Structures
Iryna S. Butsky, Philip F. Hopkins, Philipp Kempski +3
Cosmic rays (CRs) with energies TeV comprise a significant component of the interstellar medium (ISM). Major uncertainties in CR behavior on observable scales (much larger th…
Pressure anisotropy and viscous heating in weakly collisional plasma turbulence
Jonathan Squire, Matthew W Kunz, Lev Arzamasskiy +3
Pressure anisotropy can strongly influence the dynamics of weakly collisional, high-beta plasmas, but its effects are missed by standard magnetohydrodynamics (MHD). Small changes t…
The impact of astrophysical dust grains on the confinement of cosmic rays
Jonathan Squire, Philip F Hopkins, Eliot Quataert +1
We argue that charged dust grains could significantly impact the confinement and transport of galactic cosmic rays. For sub-GeV to ~1000GeV cosmic rays, small-scale parallel Alfvén…
Shearing-box simulations of MRI-driven turbulence in weakly collisional accretion discs
Philipp Kempski, Eliot Quataert, Jonathan Squire +1
We present a systematic shearing-box investigation of MRI-driven turbulence in a weakly collisional plasma by including the effects of an anisotropic pressure stress, i.e. anisotro…