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Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino

Journal
Date Issued
2022
Author(s)
Reusch, Simeon
•
Stein, Robert
•
Kowalski, Marek
•
van Velzen, Sjoert
•
Franckowiak, Anna
•
Lunardini, Cecilia
•
Murase, Kohta
•
Winter, Walter
•
Miller-Jones, James C. A.
•
Kasliwal, Mansi M.
•
Gilfanov, Marat
•
Garrappa, Simone
•
Paliya, Vaidehi S.
•
Ahumada, Tomás
•
Anand, Shreya
•
Barbarino, Cristina
•
Bellm, Eric C.
•
Brinnel, Valéry
•
Buson, Sara
•
Cenko, S. Bradley
•
Coughlin, Michael W.
•
De, Kishalay
•
Dekany, Richard
•
Frederick, Sara
•
Gal-Yam, Avishay
•
Gezari, Suvi
•
•
Graham, Matthew J.
•
Karambelkar, Viraj
•
Kimura, Shigeo S.
•
Kong, Albert K. H.
•
Kool, Erik C.
•
Laher, Russ R.
•
Medvedev, Pavel
•
Necker, Jannis
•
Nordin, Jakob
•
Perley, Daniel A.
•
Rigault, Mickael
•
Rusholme, Ben
•
Schulze, Steve
•
Schweyer, Tassilo
•
Singer, Leo P.
•
Sollerman, Jesper
•
Strotjohann, Nora Linn
•
Sunyaev, Rashid
•
van Santen, Jakob
•
Walters, Richard
•
Zhang, B. Theodore
•
Zimmerman, Erez
DOI
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.
Volume
128
Issue
22
Start page
221101
Uri
Url
Issn Identifier
0031-9007
Ads BibCode
2022PhRvL.128v1101R
Rights
open.access
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