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

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

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, inclu...

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Veröffentlicht in:arXiv.org 2022-06
Hauptverfasser: Reusch, Simeon, Stein, Robert, Kowalski, Marek, Sjoert van Velzen, Franckowiak, Anna, Lunardini, Cecilia, Murase, Kohta, Winter, Walter, Miller-Jones, James C A, Kasliwal, Mansi M, Gilfanov, Marat, Garrappa, Simone, Paliya, Vaidehi S, Ahumada, Tomas, Anand, Shreya, Barbarino, Cristina, Bellm, Eric C, Brinnel, Valery, Buson, Sara, S Bradley Cenko, Coughlin, Michael W, De, Kishalay, Dekany, Richard, Frederick, Sara, Gal-Yam, Avishay, Gezari, Suvi, Giroletti, Marcello, 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, Nora Linn Strotjohann, Sunyaev, Rashid, Jakob van Santen, Walters, Richard, Zhang, B Theodore, Zimmerman, Erez
Format: Artikel
Sprache:eng
Schlagworte:
Disruption
Emission
Neutrinos
Physics - High Energy Astrophysical Phenomena
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Zusammenfassung: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2111.09390