Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino
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Open access
Authors
Reusch, S.
Stein, R.
Kowalski, M.
Van Velzen, S.
Franckowiak, A.
Lunardini, C.
Murase, K.
Winter, W.
Miller-Jones, James
Kasliwal, M.M.
Gilfanov, M.
Garrappa, S.
Paliya, V.S.
Ahumada, T.
Anand, S.
Barbarino, C.
Bellm, E.C.
Brinnel, V.
Buson, S.
Cenko, S.B.
Coughlin, M.W.
De, K.
Dekany, R.
Frederick, S.
Gal-Yam, A.
Gezari, S.
Giroletti, M.
Graham, M.J.
Karambelkar, V.
Kimura, S.S.
Kong, A.K.H.
Kool, E.C.
Laher, R.R.
Medvedev, P.
Necker, J.
Nordin, J.
Perley, D.A.
Rigault, M.
Rusholme, B.
Schulze, S.
Schweyer, T.
Singer, L.P.
Sollerman, J.
Strotjohann, N.L.
Sunyaev, R.
Van Santen, J.
Walters, R.
Zhang, B.T.
Zimmerman, E.
Date
2022Type
Journal Article
Metadata
Show full item recordCitation
Reusch, S. and Stein, R. and Kowalski, M. and Van Velzen, S. and Franckowiak, A. and Lunardini, C. and Murase, K. et al. 2022. Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino. Physical Review Letters. 128 (22): ARTN 221101.
Source Title
Physical Review Letters
ISSN
Faculty
Faculty of Science and Engineering
School
School of Elec Eng, Comp and Math Sci (EECMS)
Funding and Sponsorship
Remarks
Copyright © 2022 American Physical Society
Collection
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.