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.
- Received 16 December 2021
- Accepted 9 March 2022
DOI:https://doi.org/10.1103/PhysRevLett.128.221101
© 2022 American Physical Society
Physics Subject Headings (PhySH)
Focus
Neutrinos from a Black Hole Snack
Published 3 June 2022
Researchers have found new evidence that high-energy neutrinos are emitted when a black hole gobbles up a hapless star.
See more in Physics
