SN 2023uqf: An Interacting Supernova Coincident with a High-Energy Neutrino
Abstract
Astrophysical high-energy (TeV-PeV) neutrinos were first discovered in 2013, but their origin remains largely unknown. Here we present SN 2023uqf, a supernova found in coincidence with high-energy neutrino IC231004A, as part of a systematic optical follow-up program with the Zwicky Transient Facility. SN 2023uqf had a luminous and rapidly-evolving lightcurve, and spectroscopic observations indicated that the source was a Type Ibn supernova. Spectroscopic signatures confirm ongoing interaction between the supernova ejecta and a dense circumstellar medium, as expected for high-energy neutrino production in a core-collapse supernova. Given the rare nature of Type Ibn supernovae, SN 2023uqf is unlikely to have been discovered by chance over the course of our program (p=0.3%). Our discovery of SN 2023uqf provides the first observational evidence to support long-held theories that interacting supernovae can serve as cosmic hadron accelerators.
Keywords
Cite
@article{arxiv.2508.08355,
title = {SN 2023uqf: An Interacting Supernova Coincident with a High-Energy Neutrino},
author = {Robert Stein and Anna Y. Q. Ho and Anjasha Gangopadhyay and Tomas Ahumada and Mansi M. Kasliwal and Jannis Necker and Simeon Reusch and Marek Kowalski and Anna Franckowiak and Jesper Sollerman and Kohta Murase and Igor Andreoni and Eric C. Bellm and Joshua Bloom and Sean J. Brennan and Liam Connor and Michael W. Coughlin and Richard Dekany and Andrew Drake and Christoffer Fremling and Ariel Goobar and Matthew J. Graham and Steven L. Groom and Theophile Jegou du Laz and Daniel Perley and Priscila J. Pessi and Josiah Purdum and Brendan O'Connor and Steve Schulze and Gokul P. Srinivasaragavan and Sylvain Veilleux and Avery Wold and Lin Yan},
journal= {arXiv preprint arXiv:2508.08355},
year = {2025}
}
Comments
24 pages, 10 figures