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From the 1 of 24 linked papers with an AI index.

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20242026
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24 papers

astro-ph.HE2026

Gamma-ray burst progenitors revisited

Andrew J. Levan, Jillian C. Rastinejad, Helena-Margaret S. Grabham +11

The paper examines nearby long-duration gamma-ray bursts that lack supernova signatures, finding that many may originate from compact object mergers rather than massive stars, and…

astro-ph.HE2026

GRB 180728A and SN 2018fip: the nearest high-energy cosmological gamma-ray burst with an associated supernova

A. Rossi, L. Izzo, K. Maeda +29

The long GRB 180728A, at a redshift of , stands out due to its high isotropic energy of erg, in contrast with most events at redshi…

astro-ph.HE2025

Can GRB 250702B be explained as the tidal disruption of a white dwarf by an intermediate mass black hole? Yes

Rob AJ Eyles-Ferris, Andrew King, Rhaana LC Starling +11

GRB 250702B is a unique astrophysical transient characterised by its nature as a repeating gamma-ray trigger. Its properties include possible periodicity in its gamma-ray light cur…

astro-ph.HE2025

JWST and HST observations of the host galaxy and supernova, SN 2024aihh in EP240801a at z=1.67

Agnes P. C. van Hoof, Andrew J. Levan, Peter G. Jonker +15

We present James Webb Space Telescope (JWST) and Hubble Space Telescope (HST) observations of the counterpart of EP240801a, at z=1.67, the first fast X-ray transient (FXT) identifi…

astro-ph.HE2025

Unveiling the nature of the Einstein Probe transient EP 241021a

J. Quirola-Vásquez, P. G. Jonker, A. J. Levan +23

We present a multi-wavelength analysis of the fast X-ray transient EP 241021a, discovered by the Wide-field X-ray Telescope aboard the \emph{Einstein Probe} satellite on 2024 Octob…

astro-ph.HE2025

Discovery and Analysis of Afterglows from Poorly Localised GRBs with the Gravitational-wave Optical Transient Observer (GOTO) All-sky Survey

Amit Kumar, B. P. Gompertz, B. Schneider +86

Gamma-ray bursts (GRBs), particularly those detected by wide-field instruments such as the Fermi/GBM, pose a challenge for optical follow-up due to their large initial localisation…