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

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arxiv 2111.09390 v2 pith:HCMHPNUK submitted 2021-11-17 astro-ph.HE

Simeon Reusch , Robert Stein , Marek Kowalski , Sjoert van Velzen , Anna Franckowiak , Cecilia Lunardini , Kohta Murase , Walter Winter
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James C. A. Miller-Jones Mansi M. Kasliwal Marat Gilfanov Simone Garrappa Vaidehi S. Paliya Tomas Ahumada Shreya Anand Cristina Barbarino Eric C. Bellm Valery Brinnel Sara Buson S. Bradley Cenko Michael W. Coughlin Kishalay De Richard Dekany Sara Frederick Avishay Gal-Yam Suvi Gezari Marcello Giroletti Matthew J. Graham Viraj Karambelkar Shigeo S. Kimura Albert K. H. Kong Erik C. Kool Russ R. Laher Pavel Medvedev Jannis Necker Jakob Nordin Daniel A. Perley Mickael Rigault Ben Rusholme Steve Schulze Tassilo Schweyer Leo P. Singer Jesper Sollerman Nora Linn Strotjohann Rashid Sunyaev Jakob van Santen Richard Walters B. Theodore Zhang Erez Zimmerman
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keywords neutrinohigh-energyat2019fdrbrightcandidatecoincidentdisruptionevent
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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.

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Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Exploring the properties of newborn pulsars with high-energy neutrinos

    astro-ph.HE 2025-07 conditional novelty 5.0 of 10

    Neutrinos from newborn pulsar winds hitting supernova ejecta could be detected from a galactic source by IceCube if B/P^2 exceeds ~0.003, with parameter constraints and a detectable diffuse flux for next-generation te...

  2. Tidal Disruption Events with the SKA

    astro-ph.HE 2026-07 unverdicted novelty 4.0 of 10

    With its projected sensitivity, low-frequency coverage, and VLBI, the SKA would shift tidal disruption event radio studies from a handful of events to hundreds, enabling population-level inference on jets, black-hole ...

  3. On the Blueprint of Active Galaxies Producing Neutrinos

    astro-ph.HE 2026-07 conditional novelty 4.0 of 10

    Neutrinos from active galaxies are produced in compact X-ray-bright coronae within about ten Schwarzschild radii of the black hole, and such sources may supply the diffuse neutrino flux.

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