activity
20192026
most citedFermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

69 citations · 107 across the 20 of their papers we have counts for

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10 papers · 1 filter

astro-ph.HE2025

A milli-Tidal Disruption Event Model for GRB250702B: Main Sequence Star Disrupted by an IMBH

Jonathan Granot, Hagai B. Perets, Ramandeep Gill +2

GRB250702B is the longest GRB recorded so far, with multiple gamma-ray emission episodes spread over a duration exceeding ks and a weaker soft X-ray pre-peak day…

astro-ph.HE2025

Synchrotron Self-Compton Model of TeV Afterglows in Gamma-Ray Bursts

Edilberto Aguilar-Ruiz, Ramandeep Gill, Paz Beniamini +1

The detection of a very-high-energy TeV spectral component in the afterglow emission of gamma-ray bursts (GRBs) has opened a new probe into the energetics of ultra-relativistic bla…

astro-ph.HE2025

Comprehensive X-ray Observations of the Exceptional Ultra-long X-ray and Gamma-ray Transient GRB 250702B with Swift, NuSTAR, and Chandra: Insights from the X-ray Afterglow Properties

Brendan O'Connor, Ramandeep Gill, James DeLaunay +22

GRB 250702B is an exceptional transient that produced multiple episodes of luminous gamma-ray radiation lasting for ks, placing it among the class of ultra-long gamma-ray bur…

astro-ph.HE2025

The redshift distribution of Einstein Probe transients supports their relation to gamma-ray bursts

Brendan O'Connor, Paz Beniamini, Eleonora Troja +9

The launch of the \textit{Einstein Probe} unleashed a new era of high-energy transient discovery in the largely unexplored soft X-ray band. The \textit{Einstein Probe} has detected…

astro-ph.HE2025★ 3 cited

Evidence of Energy Injection in the Short and Distant GRB 250221A in a High Density Environment

Camila Angulo-Valdez, Rosa L. Becerra, Ramandeep Gill +29

We present the photometric and spectroscopic analysis of the short-duration GRB 250221A ( s), using a data set from the optical facilities COLIBRÍ, the Harlingt…

astro-ph.HE2025★ 12 cited

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star

Eliza Neights, Eric Burns, Chris L. Fryer +52

Gamma-ray bursts are the most luminous electromagnetic events in the universe. Their prompt gamma-ray emission has typical durations between a fraction of a second and several minu…

astro-ph.HE2025

Optical/infrared observations of the extraordinary GRB 250702B: a highly obscured afterglow in a massive galaxy consistent with multiple possible progenitors

Jonathan Carney, Igor Andreoni, Brendan O'Connor +31

GRB 250702B was the longest gamma-ray burst ever detected, with a duration that challenges standard collapsar models and suggests an exotic progenitor. We collected a rich set of o…

astro-ph.HE2025

On the Efficiency of Producing Gamma-Ray Bursts from Isolated Population III Stars

Gibran Morales-Rivera, Ramandeep Gill, S. Jane Arthur +2

The rate of long-duration gamma-ray bursts (GRBs) from isolated Pop III stars is not well known, as it depends on our poor understanding of their initial mass function (IMF), rotat…

astro-ph.HE2025

Continued Rapid Radio Brightening of the Tidal Disruption Event AT2018hyz

Yvette Cendes, Edo Berger, Paz Beniamini +15

We present ongoing radio observations of the tidal disruption event (TDE) AT2018hyz, which was first detected in the radio at 972 days after disruption, following multiple non-dete…

astro-ph.HE2025★ 21 cited

The curious case of EP241021a: Unraveling the mystery of its exceptional rebrightening

Malte Busmann, Brendan O'Connor, Julian Sommer +19

Fast X-ray Transients (FXTs) are a rare and poorly understood phenomenon with a variety of possible progenitors. The launch of the Einstein Probe (EP) mission has facilitated a rap…