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20242026
most citedThe curious case of EP241021a: Unraveling the mystery of its exceptional rebrightening

21 citations · 35 across the 25 of their papers we have counts for

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astro-ph.HE2026

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…

astro-ph.HE2026

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…

astro-ph.HE2026

Discovery of a Supernova Following the Einstein Probe Transient EP250302a at z = 1.131

Brendan O'Connor, Malte Busmann, James Freeburn +7

We present a multi-wavelength analysis of the Einstein Probe (EP) fast X-ray transient (FXT) EP250302a located at redshift . Despite its luminous prompt X-ray emission, th…

astro-ph.HE2026

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…

astro-ph.HE2026

Electromagnetic Follow-up of the Sub-Solar Mass Gravitational Wave Candidate S251112cm: Kilonova Constraints and a Coincident IIb Supernova

Xander J. Hall, Tomas Ahumada, Julius Gassert +25

On November 12th, 2025 the LIGO--Virgo--KAGRA (LVK) collaboration reported gravitational waves (GWs) from a compact object merger candidate (S251112cm) with at least one sub-solar…

astro-ph.HE2026

Long GRB 250916A: an Off-axis Powerlaw Jet with Thermal Cocoon

Utkarsh Pathak, Sameer K. Patil, Hitesh Tanenia +22

Some gamma-ray bursts (GRBs) exhibit precursor emission episodes preceding the main emission, with a quiescent period in between. The properties of the precursor emission and the d…