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30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

Hydrogen-rich superluminous supernova as candidate source of the neutrino event IceCube-200530A

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Astrophysical neutrinos Poster

Description

Recent follow-up campaign of IceCube neutrino alerts carried out by the Zwicky Transient Facility (ZTF) Collaboration has led to a transient association of a muon-track candidate (IC200530A) with the optical transient AT2019fdr. The transient has been classified as a Tidal Disruption Event by ZTF. Nevertheless, considering the photometric and spectroscopic properties of the event, a hydrogen-rich superluminous supernova interpretation cannot be ruled out. In this alternative scenario, IC200530A may have been produced via inelastic proton-proton collisions between the relativistic protons accelerated at the forward shock and the cold protons of the circumstellar medium. We investigate this possibility by taking into account the uncertainties on the total ejecta energetics, ejecta mass, and on the properties of the circumstellar medium, as well as the uncertainties in the discrimination of the atmospheric and astrophysical neutrino fluxes. We conclude that IC200530A may originate from the hydrogen-rich superluminous supernova AT2019fdr.

Based on Pitik, Tamborra, Angus, and Auchettl arXiv:2110.06944, Astrophys.J. (2022, in press)

Primary authors

Tetyana Pitik (Niels Bohr International Academy) Prof. Irene Tamborra (Niels Bohr International Academy and DARK, Niels Bohr Institute, University of Copenhagen) Prof. Katie Auchettl (School of Physics, The University of Melbourne) Dr Charlotte Angus

Presentation Materials