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Bardeen-Petterson Alignment, Jets and Magnetic Truncation in GRMHD Simulations of Tilted Thin Accretion Discs
M. Liska, A. Tchekhovskoy, A. Ingram +1
Prevalent around luminous accreting black holes, thin discs are challenging to resolve in numerical simulations. When the disc and black hole angular momentum vectors are misaligne…
EM counterparts of structured jets from 3D GRMHD simulations
Adithan Kathirgamaraju, Alexander Tchekhovskoy, Dimitrios Giannios +1
GW170817/GRB170817A has offered unprecedented insight into binary neutron star post-merger systems. Its Prompt and afterglow emission imply the presence of a tightly collimated rel…
Large-Scale Poloidal Magnetic Field Dynamo Leads to Powerful Jets in GRMHD Simulations of Black Hole Accretion with Toroidal Field
M. T. P. Liska, A. Tchekhovskoy, E. Quataert
Accreting black holes (BHs) launch relativistic collimated jets, across many decades in luminosity and mass, suggesting the jet launching mechanism is universal, robust and scale-f…
Long-term GRMHD Simulations of Neutron Star Merger Accretion Disks: Implications for Electromagnetic Counterparts
Rodrigo Fernández, Alexander Tchekhovskoy, Eliot Quataert +2
We investigate the long-term evolution of black hole accretion disks formed in neutron star mergers. These disks expel matter that contributes to an -process kilonova, and can p…
Multiwavelength Observations of Relativistic Jets from General Relativistic Magnetohydrodynamic Simulations
Richard Anantua, Roger Blandford, Alexander Tchekhovskoy
This work summarizes a program intended to unify three burgeoning branches of the high-energy astrophysics of relativistic jets: general relativistic magnetohydrodynamic (GRMHD) si…