102 citations · 125 across the 7 of their papers we have counts for
8 papers
Collapsars Are Not Heavy -Process Factories
Ore Gottlieb, Danat Issa, Jonatan Jacquemin-Ide
Collapsar disks are proposed sources of -process elements, but neutron-rich disk ejecta require gas to be both neutronized in the disk and ejected before accretion. The magnetic…
Spinning into the Gap: Direct-Horizon Collapse as the Origin of GW231123 from End-to-End GRMHD Simulations
Ore Gottlieb, Brian D. Metzger, Danat Issa +3
GW231123, the most massive binary black hole (BH) merger observed to date, involves component BHs with masses inside the pair-instability mass gap and unusually high spins. This ch…
Black Hole Spin-down in Collapsars in 3D Neutrino Transport GRMHD Simulations
Danat Issa, Beverly Lowell, Jonatan Jacquemin-Ide +2
Collapsars -- massive stars whose cores promptly collapse into black holes (BHs) -- can power long-duration gamma-ray bursts (LGRBs) via relativistic, collimated, electromagnetical…
Magnetically-Driven Neutron-Rich Ejecta Unleashed: Global 3D Neutrino-General Relativistic Magnetohydrodynamic Simulations of Collapsars Probe the Conditions for r-process Nucleosynthesis
Danat Issa, Ore Gottlieb, Brian Metzger +5
Collapsars - rapidly rotating stellar cores that form black holes - can power gamma-ray bursts (GRBs) and are proposed to be key contributors to the production of heavy elements in…
A Unified Picture of Short and Long Gamma-ray Bursts from Compact Binary Mergers
Ore Gottlieb, Brian Metzger, Eliot Quataert +7
The recent detections of the -s long -ray bursts (GRBs) 211211A and 230307A followed by softer temporally extended emission (EE) and kilonovae, point to a new GRB class.…
Large-scale Evolution of Seconds-long Relativistic Jets from Black Hole-Neutron Star Mergers
Ore Gottlieb, Danat Issa, Jonatan Jacquemin-Ide +11
We present the first numerical simulations that track the evolution of a black hole-neutron star (BH-NS) merger from pre-merger to . The disk that forms…
Hours-long Near-UV/Optical Emission from Mildly Relativistic Outflows in Black Hole-Neutron Star Mergers
Ore Gottlieb, Danat Issa, Jonatan Jacquemin-Ide +7
The ongoing LIGO-Virgo-KAGRA observing run O4 provides an opportunity to discover new multi-messenger events, including binary neutron star (BNS) mergers such as GW170817, and the…
H-AMR: A New GPU-accelerated GRMHD Code for Exascale Computing With 3D Adaptive Mesh Refinement and Local Adaptive Time-stepping
M. T. P. Liska, K. Chatterjee, D. Issa +10
General-relativistic magnetohydrodynamic (GRMHD) simulations have revolutionized our understanding of black hole accretion. Here, we present a graphics processing unit (GPU) accele…