166 citations · 244 across the 5 of their papers we have counts for
8 papers
Physical models of streaming instabilities in protoplanetary disks
Jonathan Squire, Philip F. Hopkins
We develop simple, physically motivated models for drag-induced dust-gas streaming instabilities, which are thought to be crucial for clumping grains to form planetesimals in proto…
In-situ switchback formation in the expanding solar wind
Jonathan Squire, Benjamin D. G. Chandran, Romain Meyrand
Recent near-sun solar-wind observations from Parker Solar Probe have found a highly dynamic magnetic environment, permeated by abrupt radial-field reversals, or "switchbacks." We s…
Sound-Wave Instabilities in Dilute Plasmas with Cosmic Rays: Implications for Cosmic-Ray Confinement and the Perseus X-ray Ripples
Philipp Kempski, Eliot Quataert, Jonathan Squire
Weakly collisional, magnetised plasmas characterised by anisotropic viscosity and conduction are ubiquitous in galaxies, halos and the intracluster medium (ICM). Cosmic rays (CRs)…
On the Survival of Cool Clouds in the Circum-Galactic Medium
Zhihui Li, Philip F. Hopkins, Jonathan Squire +1
We explore the survival of cool clouds in multi-phase circum-galactic media. We revisit the "cloud crushing problem" in a large survey of simulations including radiative cooling, s…
[Plasma 2020 Decadal] The Material Properties of Weakly Collisional, High-Beta Plasmas
M. W. Kunz, J. Squire, S. A. Balbus +14
This white paper, submitted for the Plasma 2020 Decadal Survey, concerns the physics of weakly collisional, high-beta plasmas -- plasmas in which the thermal pressure dominates ove…
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…