190 citations · 1.7k across the 35 of their papers we have counts for
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Observational Evidence for Hot Wind Impact on pc-scale in Low-luminosity Active Galactic Nucleus
Fangzheng Shi, Feng Yuan, Zhiyuan Li +2
Supermassive black holes in galaxies spend majority of their lifetime in the low-luminosity regime, powered by hot accretion flow. Strong winds launched from the hot accretion flow…
Standard Self-Confinement and Extrinsic Turbulence Models for Cosmic Ray Transport are Fundamentally Incompatible with Observations
Philip F. Hopkins, Jonathan Squire, Iryna S. Butsky +1
Models for cosmic ray (CR) dynamics fundamentally depend on the rate of CR scattering from magnetic fluctuations. In the ISM, for CRs with energies ~MeV-TeV, these fluctuations are…
Numerical Study of Cosmic Ray Confinement through Dust Resonant Drag Instabilities
Suoqing Ji, Jonathan Squire, Philip F. Hopkins
We investigate the possibility of cosmic ray (CR) confinement by charged dust grains through resonant drag instabilities (RDIs). We perform magnetohydrodynamic particle-in-cell sim…
A Reduced-Speed-of-Light Formulation of the Magnetohydrodynamic-Particle-in-Cell Method
Suoqing Ji, Philip F. Hopkins
A reduced-speed-of-light (RSOL) approximation is a useful technique for magnetohydrodynamic (MHD)-particle-in-cell (PIC) simulations. With a RSOL, some "in-code" speed-of-light $\t…
First Predicted Cosmic Ray Spectra, Primary-to-Secondary Ratios, and Ionization Rates from MHD Galaxy Formation Simulations
Philip F. Hopkins, Iryna S. Butsky, Georgia V. Panopoulou +4
We present the first simulations evolving resolved spectra of cosmic rays (CRs) from MeV-TeV energies (including electrons, positrons, (anti)protons, and heavier nuclei), in live k…
Testing Physical Models for Cosmic Ray Transport Coefficients on Galactic Scales: Self-Confinement and Extrinsic Turbulence at GeV Energies
Philip F. Hopkins, Jonathan Squire, T. K. Chan +4
The microphysics of ~GeV cosmic ray (CR) transport on galactic scales remain deeply uncertain, with almost all studies adopting simple prescriptions (e.g. constant-diffusivity). We…
The Efficiency of Magnetic Field Amplification at Shocks by Turbulence
Suoqing Ji, S. Peng Oh, Mateusz Ruszkowski +1
Turbulent dynamo field amplification has often been invoked to explain the strong field strengths in thin rims in supernova shocks (G) and in radio relics in galaxy…
Light Curves and Spectra from a Thermonuclear Explosion of a White Dwarf Merger
Daniel R. van Rossum, Rahul Kashyap, Robert Fisher +5
Double-degenerate (DD) mergers of carbon-oxygen white dwarfs have recently emerged as a leading candidate for normal Type Ia supernovae (SNe Ia). However, many outstanding question…