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.
Original language | English |
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Article number | 221101 |
Journal | Physical review letters |
Volume | 128 |
Issue number | 22 |
DOIs | |
Publication status | Published - 3 Jun 2022 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy