Beyond second-order convergence in simulations of magnetized binary neutron stars with realistic microphysics

ER Most, LJ Papenfort, L Rezzolla - Monthly Notices of the Royal …, 2019 - academic.oup.com
We investigate the impact of using high-order numerical methods to study the merger of
magnetized neutron stars with finite-temperature microphysics and neutrino cooling in full …

Constrained transport and adaptive mesh refinement in the Black Hole Accretion Code

H Olivares, O Porth, J Davelaar, ER Most… - Astronomy & …, 2019 - aanda.org
Context. Worldwide very long baseline radio interferometry (VLBI) arrays are expected to
obtain horizon-scale images of supermassive black hole candidates and of relativistic jets in …

Modeling non-thermal emission from the jet-launching region of M 87 with adaptive mesh refinement

J Davelaar, H Olivares, O Porth, T Bronzwaer… - Astronomy & …, 2019 - aanda.org
Context. The galaxy M 87 harbors a kiloparsec-scale relativistic jet, whose origin coincides
with a compact source thought to be a supermassive black hole. Observational millimeter …

General-relativistic resistive magnetohydrodynamics with robust primitive-variable recovery for accretion disk simulations

B Ripperda, F Bacchini, O Porth, ER Most… - The Astrophysical …, 2019 - iopscience.iop.org
Recent advances in black hole astrophysics, particularly the first visual evidence of a
supermassive black hole at the center of the galaxy M87 by the Event Horizon Telescope …

GR-MHD disk winds and jets from black holes and resistive accretion disks

C Vourellis, C Fendt, Q Qian… - The Astrophysical …, 2019 - iopscience.iop.org
We perform GR-MHD simulations of outflow launching from thin accretion disks. As in the
nonrelativistic case, resistivity is essential for the mass loading of the disk wind. We …

Testing the Schwarzschild metric in a strong field region with the Event Horizon Telescope

SX Tian, ZH Zhu - Physical Review D, 2019 - APS
Testing gravity theory in the strong field region becomes a reality due to the observations of
gravitational waves and black hole shadows. In this paper, we discuss how to constrain the …

Approaching the black hole by numerical simulations

C Fendt - Universe, 2019 - mdpi.com
Black holes represent extreme conditions of physical laws. Predicted about a century ago,
they are now accepted as astrophysical reality by most of the scientific community. Only …

Scale-invariance of black hole accretion: modelling emission from a black hole X-ray binary with relativistic accretion flow simulations

M Mościbrodzka - Monthly Notices of the Royal Astronomical …, 2019 - academic.oup.com
We model the non-thermal emission spectrum of the extremely sub-Eddington X-ray binary
system A0620-00. It is believed that this non-thermal emission is produced by radiatively …