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Be it therefore resolved: Cosmological Simulations of Dwarf Galaxies with Extreme Resolution
Coral Wheeler, Philip F. Hopkins, Andrew B. Pace +7
We study a suite of extremely high-resolution cosmological FIRE simulations of dwarf galaxies (), run to with resolut…
Cosmic ray feedback in the FIRE simulations: constraining cosmic ray propagation with GeV gamma ray emission
T. K. Chan, D. Keres, P. F. Hopkins +4
We present the implementation and the first results of cosmic ray (CR) feedback in the Feedback In Realistic Environments (FIRE) simulations. We investigate CR feedback in non-cosm…
Black Hole Accretion Discs and Luminous Transients in Failed Supernovae from Non-Rotating Supergiants
Eliot Quataert, Daniel Lecoanet, Eric R. Coughlin
We show that for supergiants, net angular momentum is not a necessary condition for forming accretion discs during core-collapse. Even absent net rotation, convective motions in th…
Accretion of Magnetized Stellar Winds in the Galactic Centre: Implications for Sgr A* and PSR J1745-2900
Sean M. Ressler, Eliot Quataert, James M. Stone
The observed rotation measures (RMs) towards the galactic centre magnetar and towards Sagittarius A* provide a strong constraint on MHD models of the galactic centre accretion flow…
Magneto-immutable turbulence in weakly collisional plasmas
Jonathan Squire, Alexander A. Schekochihin, Eliot Quataert +1
We propose that pressure anisotropy causes weakly collisional turbulent plasmas to self-organize so as to resist changes in magnetic-field strength. We term this effect "magneto-im…
Gravitational interactions of stars with supermassive black hole binaries - II. Hypervelocity stars
Siva Darbha, Eric R. Coughlin, Daniel Kasen +1
Supermassive black holes (SMBHs) in galactic nuclei can eject hypervelocity stars (HVSs). Using restricted three-body integrations, we study the properties of stars ejected by circ…