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20242026
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6 papers · 1 filter

astro-ph.HE2026

Supernovae with the Square Kilometre Array

Poonam Chandra, Yuhei Iwata, A. J. Nayana +2

This chapter presents the science potential of the Square Kilometre Array (SKA) for studying all classes of supernovae and their environments. It substantially updates and extends…

astro-ph.HE2025

Radio studies of supernovae 1979C, 1986J and 2006X with LOFAR

Peter Lundqvist, Deeepika Venkattu, Miguel Pérez Torres +3

We present LOw Frequency ARray (LOFAR) studies of supernovae SN 1979C, SN 1986J, and SN 2006X, focusing on new observations from the LOFAR Two-metre Sky Survey (LoTSS) and the Inte…

astro-ph.HE2025

Multiwavelength view of circumstellar interaction in supernovae

Poonam Chandra

The interaction of post-explosion supernova ejecta with the surrounding circumstellar medium creates emission across the electromagnetic spectrum. Since the circumstellar medium is…

astro-ph.HE2025

Multi-Wavelength Analysis of AT 2023sva: a Luminous Orphan Afterglow With Evidence for a Structured Jet

Gokul P. Srinivasaragavan, Daniel A. Perley, Anna Y. Q. Ho +50

We present multi-wavelength analysis of ZTF23abelseb (AT 2023sva), an optically discovered fast-fading ( mag in days), luminous ( mag) and…

astro-ph.HE20241 cited

The Nature of Optical Afterglows Without Gamma-ray Bursts: Identification of AT2023lcr and Multiwavelength Modeling

Maggie L. Li, Anna Y. Q. Ho, Geoffrey Ryan +29

In the past few years, the improved sensitivity and cadence of wide-field optical surveys have enabled the discovery of several afterglows without associated detected gamma-ray bur…

astro-ph.HE2024

Rocking the BOAT: the ups and downs of the long-term radio light curve for GRB 221009A

L. Rhodes, A. J. van der Horst, J. S. Bright +24

We present radio observations of the long-duration gamma-ray burst (GRB) 221009A which has become known to the community as the Brightest Of All Time or the BOAT. Our observations…