Gamma-Ray Bursts Afterglow Physics and the VHE Domain

D Miceli, L Nava - Galaxies, 2022 - mdpi.com
Afterglow radiation in gamma-ray bursts (GRB), extending from the radio band to GeV
energies, is produced as a result of the interaction between the relativistic jet and the …

[HTML][HTML] 3D turbulent reconnection: Theory, tests, and astrophysical implications

A Lazarian, GL Eyink, A Jafari, G Kowal, H Li, S Xu… - Physics of …, 2020 - pubs.aip.org
Magnetic reconnection, topological changes in magnetic fields, is a fundamental process in
magnetized plasmas. It is associated with energy release in regions of magnetic field …

Model constraints based on the IceCube neutrino nondetection of GRB 221009A

S Ai, H Gao - The Astrophysical Journal, 2023 - iopscience.iop.org
GRB 221009A is a bright gamma-ray burst (GRB) with isotropic energy larger than 10 54
erg. Its fairly low redshift makes it a promising candidate for high-energy neutrino detection …

Analytical solution of magnetically dominated astrophysical jets and winds: jet launching, acceleration, and collimation

L Chen, B Zhang - The Astrophysical Journal, 2021 - iopscience.iop.org
We present an analytical solution of a highly magnetized jet/wind flow. The left side of the
general force-free jet/wind equation (the" pulsar" equation) is separated into a rotating and a …

Prompt GRB polarization from non-axisymmetric jets

R Gill, J Granot - Monthly Notices of the Royal Astronomical …, 2024 - academic.oup.com
Time-resolved linear polarization (Π) measurements of the prompt gamma-ray burst
emission can reveal its dominant radiation mechanism. A widely considered mechanism is …

On the origin of the multi-GeV photons from the closest burst with intermediate luminosity: GRB 190829A

N Fraija, P Veres, P Beniamini… - The Astrophysical …, 2021 - iopscience.iop.org
Very high energy (VHE) emission is usually interpreted in the synchrotron self-Compton
scenario and expected from the low-redshift and high-luminosity gamma-ray bursts (GRBs) …

Magnetization Factors of Gamma-Ray Burst Jets Revealed by a Systematic Analysis of the Fermi Sample

A Li, H Gao, L Lan, B Zhang - The Astrophysical Journal, 2024 - iopscience.iop.org
The composition of gamma-ray burst (GRB) jets remained a mystery until recently. In
practice, we usually characterize the magnetization of the GRB jets (σ 0) through the ratio …

Turbulent reconnection acceleration

S Xu, A Lazarian - The Astrophysical Journal, 2022 - iopscience.iop.org
The ubiquitous turbulence in astrophysical plasmas is important for both magnetic
reconnection and reconnection acceleration. We study the particle acceleration during fast …

[HTML][HTML] Particle acceleration in self-driven turbulent reconnection

JF Zhang, S Xu, A Lazarian, G Kowal - Journal of High Energy Astrophysics, 2023 - Elsevier
The theoretical prediction that magnetic reconnection spontaneously drives turbulence has
been supported by magnetohydrodynamic (MHD) and kinetic simulations. While …

GRB 211211A: a Prolonged Central Engine under a Strong Magnetic Field Environment

H Gao, WH Lei, ZP Zhu - The Astrophysical Journal Letters, 2022 - iopscience.iop.org
Recently, a kilonova-associated gamma-ray burst (GRB 211211A), whose light curve
consists of a precursor (∼ 0.2 s), a hard spiky emission (∼ 10 s), and a soft long extended …