The electromagnetic counterparts of compact binary mergers

E Nakar - Physics Reports, 2020‏ - Elsevier
Mergers of binaries consisting of two neutron stars, or a black hole and a neutron star, offer a
unique opportunity to study a range of physical and astrophysical processes using two …

Physics of radiation mediated shocks and its applications to GRBs, supernovae, and neutron star mergers

A Levinson, E Nakar - Physics Reports, 2020‏ - Elsevier
The first electromagnetic signal observed in different types of cosmic explosions is released
upon emergence of a shock created in the explosion from the opaque envelope …

The structure of hydrodynamic γ-ray burst jets

O Gottlieb, E Nakar, O Bromberg - Monthly Notices of the Royal …, 2021‏ - academic.oup.com
After being launched, gamma-ray burst (GRB) jets propagate through dense media prior to
their breakout. The jet-medium interaction results in the formation of a complex structured …

Black hole to breakout: 3D GRMHD simulations of collapsar jets reveal a wide range of transients

O Gottlieb, A Lalakos, O Bromberg… - Monthly Notices of …, 2022‏ - academic.oup.com
We present a suite of the first 3D GRMHD collapsar simulations, which extend from the self-
consistent jet launching by an accreting Kerr black hole (BH) to the breakout from the star …

The structure of weakly magnetized γ-ray burst jets

O Gottlieb, O Bromberg, CB Singh… - Monthly Notices of the …, 2020‏ - academic.oup.com
The interaction of gamma-ray burst (GRB) jets with the dense media into which they are
launched promote the growth of local hydrodynamic instabilities along the jet boundary. In a …

X-ray plateaus in gamma-ray bursts' light curves from jets viewed slightly off-axis

P Beniamini, R Duque, F Daigne… - Monthly Notices of the …, 2020‏ - academic.oup.com
Using multiple observational arguments, recent work has shown that cosmological gamma-
ray bursts (GRBs) are typically viewed at angles within, or close to the cores of their …

Black hole to PHOTOsphere: 3D GRMHD simulations of collapsars reveal wobbling and hybrid composition jets

O Gottlieb, M Liska, A Tchekhovskoy… - The Astrophysical …, 2022‏ - iopscience.iop.org
Long-duration γ-ray bursts (GRBs) accompany the collapse of massive stars and carry
information about the central engine. However, no 3D models have been able to follow …

GRB minimum variability timescale with Insight-HXMT and Swift-Implications for progenitor models, dissipation physics, and GRB classifications

AE Camisasca, C Guidorzi, L Amati, F Frontera… - Astronomy & …, 2023‏ - aanda.org
Context. There has been significant technological and scientific progress in our ability to
detect, monitor, and model the physics of γ-ray bursts (GRBs) over the 50 years since their …

Numerical simulation of photospheric emission in long gamma-ray bursts: prompt correlations, spectral shapes, and polarizations

H Ito, J Matsumoto, S Nagataki… - The Astrophysical …, 2024‏ - iopscience.iop.org
We explore the properties of photospheric emission in the context of long gamma-ray bursts
(GRBs) using three numerical models that combine relativistic hydrodynamical simulations …

The propagation of relativistic jets in expanding media

O Gottlieb, E Nakar - Monthly Notices of the Royal Astronomical …, 2022‏ - academic.oup.com
We present a comprehensive analytic model of relativistic jet propagation in expanding
homologous media (ejecta). This model covers the entire jet evolution as well as a range of …