Please read these instructions before posting any event on Fermilab Indico

Indico search will be reestablished in the next version upgrade of the software: https://getindico.io/roadmap/


   

This search is only for public events. Restricted events are not available.

June 22, 2020 to July 2, 2020
US/Central timezone

A high-energy neutrino coincident with a Tidal Disruption Event

Not scheduled
10m

Speaker

Mr Robert Stein (DESY Zeuthen)

Description

IceCube discovered a diffuse flux of high-energy neutrinos in 2013, and recently identified the flaring blazar TXS 0506+056 as a likely neutrino source. However, a combined analysis of many similar blazars revealed no significant population excess, leaving the vast majority of the neutrino flux unexplained. Here we present the identification of a second likely neutrino source, the Tidal Disruption Event (TDE) AT2019dsg, found as part of a systematic search for optical counterparts to high-energy neutrinos using the Zwicky Transient Facility. The probability of finding such a TDE with our follow-up program by chance is just 0.2%. Our multi-wavelength observations reveal the presence of a central engine powering particle acceleration in AT2019dsg, and confirm that this object can satisfy all necessary conditions for PeV neutrino production.

Mini-abstract

ZTF identifies the tidal disruption event AT2019dsg as a likely high-energy neutrino source

Experiment/Collaboration Zwicky Transient Facility (ZTF)

Primary author

Mr Robert Stein (DESY Zeuthen)

Presentation Materials