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GW170817, general relativistic magnetohydrodynamic simulations, and the neutron star maximum mass.
Recent numerical simulations in general relativistic magnetohydrodynamics (GRMHD) provide useful constraints for the interpretation of the GW170817 discovery. Combining the observed data with theseExpand
BINARY NEUTRON STAR MERGERS: A JET ENGINE FOR SHORT GAMMA-RAY BURSTS.
We perform magnetohydrodynamic simulations in full general relativity (GRMHD) of quasi-circular, equal-mass, binary neutron stars that undergo merger. The initial stars are irrotational, n = 1Expand
Relativistic simulations of black hole-neutron star coalescence: the jet emerges
We perform magnetohydrodynamic simulations in full general relativity (GRMHD) of a binary black hole-neutron star on a quasicircular orbit that undergoes merger. The binary mass ratio is 3:1, theExpand
General relativistic magnetohydrodynamics simulations of prompt-collapse neutron star mergers: The absence of jets.
Inspiraling and merging binary neutron stars are not only important source of gravitational waves, but also promising candidates for coincident electromagnetic counterparts. These systems are thoughtExpand
GW190814: Spin and equation of state of a neutron star companion
The recent discovery by LIGO/Virgo of a merging binary having a $\sim 23 M_\odot$ black hole and a $\sim 2.6 M_\odot$ compact companion has triggered a debate regarding the nature of the secondary,Expand
Disks around merging binary black holes: From GW150914 to supermassive black holes.
We perform magnetohydrodynamic simulations in full general relativity of disk accretion onto nonspinning black hole binaries with mass ratio q = 29/36. We survey different disk models which differ inExpand
Outer boundary conditions for Einstein's field equations in harmonic coordinates
We analyze Einstein's vacuum field equations in generalized harmonic coordinates on a compact spatial domain with boundaries. We specify a class of boundary conditions, which is constraint-preservingExpand
Multiple expansions for energy and momenta carried by gravitational waves
We present expressions for the energy, linear momentum and angular momentum carried away from an isolated system by gravitational radiation based on spin-weighted spherical harmonics decomposition ofExpand
The role of the ergosphere in the Blandford–Znajek process
The Blandford-Znajek process, one of the most promising model for powering the relativistic jets from black holes, was initially introduced as a mechanism in which the magnetic fields extract energyExpand
Pulsar spin-down luminosity: Simulations in general relativity
Adopting our new method for matching general relativistic, ideal magnetohydrodynamics to its force-free limit, we perform the first systematic simulations of force-free pulsar magnetospheres inExpand
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