Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino
High Energy Astrophysical Phenomena
2022-06-13 v2
Abstract
The origins of the high-energy cosmic neutrino flux remain largely unknown. Recently, one high-energy neutrino was associated with a tidal disruption event (TDE). Here we present AT2019fdr, an exceptionally luminous TDE candidate, coincident with another high-energy neutrino. Our observations, including a bright dust echo and soft late-time X-ray emission, further support a TDE origin of this flare. The probability of finding two such bright events by chance is just 0.034%. We evaluate several models for neutrino production and show that AT2019fdr is capable of producing the observed high-energy neutrino, reinforcing the case for TDEs as neutrino sources.
Keywords
Cite
@article{arxiv.2111.09390,
title = {Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino},
author = {Simeon Reusch and Robert Stein and Marek Kowalski and Sjoert van Velzen and Anna Franckowiak and Cecilia Lunardini and Kohta Murase and Walter Winter and James C. A. Miller-Jones and Mansi M. Kasliwal and Marat Gilfanov and Simone Garrappa and Vaidehi S. Paliya and Tomas Ahumada and Shreya Anand and Cristina Barbarino and Eric C. Bellm and Valery Brinnel and Sara Buson and S. Bradley Cenko and Michael W. Coughlin and Kishalay De and Richard Dekany and Sara Frederick and Avishay Gal-Yam and Suvi Gezari and Marcello Giroletti and Matthew J. Graham and Viraj Karambelkar and Shigeo S. Kimura and Albert K. H. Kong and Erik C. Kool and Russ R. Laher and Pavel Medvedev and Jannis Necker and Jakob Nordin and Daniel A. Perley and Mickael Rigault and Ben Rusholme and Steve Schulze and Tassilo Schweyer and Leo P. Singer and Jesper Sollerman and Nora Linn Strotjohann and Rashid Sunyaev and Jakob van Santen and Richard Walters and B. Theodore Zhang and Erez Zimmerman},
journal= {arXiv preprint arXiv:2111.09390},
year = {2022}
}
Comments
20 pages, 6 figures, 6 tables