303 citations · 2.5k across the 55 of their papers we have counts for
55 papers
Integral Dependence over One-Sided Ideals, Part II: G-Left Ideals and the Köthe Problem
Masood Aryapoor
We study integral dependence over left ideals using G-left ideals, namely left ideals maximal with respect to the failure of integrality of a fixed element. We establish several ch…
Revealing the Structure and Magnetization of GRB Jets with ALMA Polarization Observations
Tanmoy Laskar, Collin T. Christy, Noah Franz +9
We present a systematic study of the currently available ALMA millimeter polarimetric sample of gamma-ray burst (GRB) afterglows. Our sample comprises 24 observations (20 new) of 1…
GRB 260310A/SN 2026fgk: Photometric and Spectroscopic Evolution of a Nearby GRB-Supernova and an Exceptionally Bright Afterglow at z=0.153
Brendan O'Connor, Malte Busmann, Xander J. Hall +24
The association of broad-lined Type Ic supernovae with long-duration gamma-ray bursts (GRBs) has been known for 28 years. However, only about seventy gamma-ray burst supernovae (GR…
EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova
Brendan O'Connor, Xander J. Hall, Malte Busmann +33
The explosion of a star is first marked by the shock wave breaking out of the stellar surface, producing a burst of ultraviolet and X-ray radiation. These events are observationall…
An extremely bright slow-rising afterglow from an off-axis jet in GRB 260310A
Yu-Han Yang, Roberto Ricci, Eleonora Troja +31
We present a multi-wavelength study of GRB 260310A, a nearby long-duration gamma-ray burst at associated with a broad-lined Type Ic supernova. Despite its modest pro…
Jet-Structure Imprint on the Curvature Tail of Gamma-Ray Burst Prompt Emission
Zhen-Yu Yan, Xiao-Hong Zhao, Hendrik J. van Eerten +7
Even though the prompt emission of gamma-ray bursts (GRBs) is highly beamed, high-latitude emission still produces a distinct light curve break after the intrinsic emission ceases…
Moving-mesh simulations of spreading dynamics and local electron cooling in structured gamma-ray burst afterglow jets
Sayan Kundu, Hendrik van Eerten
We present the results for the dynamics and emission profiles of axi-symmetric numerical simulations of structured gamma-ray burst afterglow jets, computed using the relativistic m…
The impact of kilonova seed photons on GRB VHE emission
John P. Hope, Hendrik J. van Eerten
Over the last several years, there have been a number of GRBs with very high energy (VHE) emission in excess of 100 GeV, and even above 1 TeV, detected. In several instances, synch…
TeV afterglow emission from a structured GRB jet using the kinetic approach
John P. Hope, Hendrik J. van Eerten, Sayan Kundu +1
Recent years have seen a growing sample of TeV emission detections in gamma-ray burst afterglows, as well as an increasing role for structured jets in afterglow modelling. Using a…
The Gravitational Wave AfterglowPy Analysis (GWAPA) webtool
R. A. J. Eyles-Ferris, H. van Eerten, E. Troja +1
We present the first release of the Gravitational Wave AfterglowPy Analysis (GWAPA) webtool. GWAPA is designed to provide the community with an interactive tool for rapid analysis…
Modelling of Long-Term Afterglow Counterparts to Gravitational Wave Events: The Full View of GRB 170817A
Geoffrey Ryan, Hendrik van Eerten, Eleonora Troja +3
The arrival of gravitational wave astronomy and a growing number of time-domain focused observatories are set to lead to a increasing number of detections of short gamma-ray bursts…
Scaling relations for gamma-ray burst afterglow light curves and centroid motion independent of jet structure and dynamics
Hendrik van Eerten, Geoffrey Ryan
Models for gamma-ray burst afterglow dynamics and synchrotron spectra are known to exhibit various scale invariances, owing to the scale-free nature of fluid dynamics and the power…
Potential biases and prospects for the Hubble constant estimation via electromagnetic and gravitational-wave joint analyses
Giulia Gianfagna, Luigi Piro, Francesco Pannarale +3
GW170817 is a binary neutron star merger that exhibited a gravitational wave (GW) and a gamma-ray burst, followed by an afterglow. In this work, we estimate the Hubble constant ($H…
The ultra-long GRB 220627A at z=3.08
S. de Wet, L. Izzo, P. J. Groot +19
GRB 220627A is a rare burst with two distinct gamma-ray emission episodes separated by almost 1000 s that triggered the Fermi Gamma-ray Burst Monitor twice. High-energy GeV emissio…
A structured jet explains the extreme GRB 221009A
B. O'Connor, E. Troja, G. Ryan +29
Long duration gamma-ray bursts (GRBs) are powerful cosmic explosions, signaling the death of massive stars. Among them, GRB 221009A is by far the brightest burst ever observed. Due…
Joint analysis of gravitational-wave and electromagnetic data of mergers: breaking an afterglow model degeneracy in GW170817 and in future events
Giulia Gianfagna, Luigi Piro, Francesco Pannarale +4
On August 17, 2017, Advanced LIGO and Virgo observed GW170817, the first gravitational-wave (GW) signal from a binary neutron star merger. It was followed by a short-duration gamma…
A nearby long gamma-ray burst from a merger of compact objects
E. Troja, C. L. Fryer, B. O'Connor +21
Gamma-ray bursts (GRBs) are flashes of high-energy radiation arising from energetic cosmic explosions. Bursts of long (>2 s) duration are produced by the core-collapse of massive s…
Probing particle acceleration at trans-relativistic shocks with off-axis gamma-ray burst afterglows
Kazuya Takahashi, Kunihito Ioka, Yutaka Ohira +1
Particle acceleration is expected to be different between relativistic and non-relativistic collisionless shocks. We show that electromagnetic counterparts to gravitational waves (…
Resonant Shattering Flares in Black Hole-Neutron Star and Binary Neutron Star Mergers
Duncan Neill, David Tsang, Hendrik van Eerten +2
Resonant Shattering flares (RSFs) are bursts of gamma-rays expected to be triggered by tidal resonance of a neutron star (NS) during binary inspiral. They are strongly dependent on…
Multi-messenger-Athena Synergy White Paper
L. Piro, M. Ahlers, A. Coleiro +30
In this paper we explore the scientific synergies between Athena and some of the key multi-messenger facilities that should be operative concurrently with Athena. These facilities…
Exploring the GRB population: Robust afterglow modelling
M. D. Aksulu, R. A. M. J. Wijers, H. J. van Eerten +1
Gamma-ray bursts (GRBs) are ultra-relativistic collimated outflows, which emit synchrotron radiation throughout the entire electromagnetic spectrum when they interact with their en…
Accurate flux calibration of GW170817: is the X-ray counterpart on the rise?
E. Troja, B. O'Connor, G. Ryan +7
X-ray emission from the gravitational wave transient GW170817 is well described as non-thermal afterglow radiation produced by a structured relativistic jet viewed off-axis. We sho…
GAMMA: a new method for modeling relativistic hydrodynamics and non-thermal emission on a moving mesh
Eliot H. Ayache, Hendrik J. van Eerten, Rupert W. Eardley
In recent years, dynamical relativistic jet simulation techniques have progressed to a point where it is becoming possible to fully numerically resolve gamma-ray burst (GRB) blast-…
Gamma-ray burst afterglow blast waves
Hendrik van Eerten
The various stages of baryonic gamma-ray burst afterglow blast waves are reviewed. These are responsible for the afterglow emission from which much of our understanding of gamma-ra…