Tidal Disruption Events and High-energy Neutrinos

  title={Tidal Disruption Events and High-energy Neutrinos},
  author={Robert Stein},
  journal={Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)},
  • R. Stein
  • Published 22 September 2021
  • Physics
  • Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
Tidal Disruption Events (TDEs) occur when stars pass close to supermassive black holes, and have long been predicted to emit cosmic rays and neutrinos. Recently the TDE AT2109dsg was identified in spatial and temporal coincidence with high-energy neutrino IC191001A as part of the Zwicky Transient Facility (ZTF) neutrino follow-up program, providing the first direct observational evidence supporting these objects as multi-messenger sources. In these proceedings, I will place the recent results… 
Is the High-energy Neutrino Event IceCube-200530A Associated with a Hydrogen-rich Superluminous Supernova?
The Zwicky Transient Facility follow-up campaign of alerts released by the IceCube Neutrino Observatory has led to the likely identification of the transient AT2019fdr as the source of the neutrino


Neutrinos from Tidal Disruption Events
  • C. Lunardini
  • Physics
    Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)
  • 2019
When a star is disrupted by a supermassive black hole, and its debris are accreted onto it, a powerful hadronic jet can be generated and be a source of high energy neutrinos and cosmic rays. I review
Theoretical interpretation of the observed neutrino emission from Tidal Disruption Events
The observation of a neutrino at IceCube in association with the Tidal Disruption Event (TDE) AT2019dsg, has suggested TDEs as a new class of sources of astrophysical neutrinos. We present a model of
Tidally disrupted stars as a possible origin of both cosmic rays and neutrinos at the highest energies
It is demonstrated that jetted TDEs can simultaneously describe the observed neutrino and cosmic ray fluxes at the highest energies if stars with heavier compositions, such as carbon-oxygen white dwarfs, are tidally disrupted and these events are sufficiently abundant.
Search for Neutrinos from Populations of Optical Transients
  • R. Stein
  • Physics
    Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)
  • 2019
Since the detection of high-energy cosmic neutrinos at the IceCube Neutrino Observatory in 2013, there has been an on-going search to find the origins of this flux. Despite recent evidence
Tidal disruption jets as the source of Ultra-High Energy Cosmic Rays
Observations of the spectacular, blazar-like tidal disrup tion event (TDE) candidatesSwift J1644+57 and J2058+05 show that the conditions required for accelerating protons to 10 eV appear to be
Neutrino Emissions from Tidal Disruption Remnants
We study high-energy neutrino emissions from tidal disruption remnants (TDRs) around supermassive black holes. The neutrinos are produced by the decay of charged pions originating in
Can tidal disruption events produce the IceCube neutrinos
Powerful jets and outflows generated in tidal disruption events (TDEs) around supermassive black holes have been suggested to be possible sites producing high-energy neutrinos, but it is unclear
A tidal disruption event coincident with a high-energy neutrino
Cosmic neutrinos provide a unique window into the otherwise hidden mechanism of particle acceleration in astrophysical objects. The IceCube Collaboration recently reported the likely association of
Neutrino emission from an off-axis jet driven by the tidal disruption event AT2019dsg
Recently, a high-energy muon neutrino event was detected in association with a tidal disruption event (TDE) AT2019dsg at the time about 150 days after the peak of the optical/UV luminosity. We
High-energy Neutrino Flares from X-Ray Bright and Dark Tidal Disruption Events
X-ray and $\gamma$-ray observations by the Swift satellite revealed that a fraction of tidal disruption events (TDEs) have relativistic jets. Jetted TDEs have been considered as potential sources of