Descripción
Gamma rays, gravitational waves, RF, optical follow-up, coincidences among neutrino detectors
VLVnT 2021 | Parallel Session Room D
https://cern.zoom.us/j/63734092003
X-ray binaries (XRBs) are binary system with an accreting compact object. They have long been suggested to be possible galactic cosmic ray accelerators. In such models, the protons accelerated by the accretion process at the compact object could carry out $pp$ or $p\gamma$ interactions in the accretion disk, in the atmosphere of the companion star, or in the stellar wind. High energy neutrinos...
Multi-messenger detections of astrophysical events improve our understanding of the underlying sources. In addition to probing different physics, such detections can provide improved localization in low latency, guiding astronomers who perform follow-up observations. We will present the real-time and offline searches for high-energy neutrinos associated with gravitational-wave events via...
The high-energy neutrino events of the IceCube telescope, which trigger
neutrino alerts in one of two probability ranks of astrophysical origin,
“gold " and "bronze", have been followed up with Baikal-GVD in a fast
quasi-online mode since September 2020. Search for correlations between
alerts and events reconstructed in two modes, track and cascade, for the
time windows \pm 1 hour and \pm 12...
The current activity of the Baikal-GVD neutrino experiment in the multi-messenger program on discovering the astrophysical sources of high energy fluxes of cosmic particles will be presented, with emphasis on results of the follow up of high energy neutrino alerts.
In 2017, a high-energy muon neutrino detected by IceCube was found positionally coincident with the direction of a known blazar, TXS 0506+056, in a state of enhanced $\gamma$-ray emission. Soon after, IceCube reported a compelling evidence for an earlier neutrino flare from the same direction found in the archival data, this time not accompanied by any observed electromagnetic activity. The...
Starburst galaxies (SBGs) and more in general starforming galaxies represent a class of galaxies with a high star formation rate (up to 100 Mo/year). Despite their low luminosity, they can be considered as guaranteed “factories” of high energy neutrinos, being “reservoirs” of accelerated cosmic rays and hosting a high density target gas in the central region. In this contribution we present a...
Gamma-Ray Bursts (GRBs) are considered very interesting astrophysical sources to be studied in the context of the neutrino astronomy. Indeed, their jet composition continues to be an open issue. Within the framework of the fireball model, mesons can be produced during photo-hadronic interactions occurring in the internal shocks between shells emitted by the central engine. From their decays,...
The discovery of a diffuse flux of astrophysical neutrinos by IceCube has opened up new possibilities for the search of cosmic-ray sources. The sources that accelerate cosmic rays to extreme energies are most-likely also high-energy neutrino emitters. To find such sources one can look for correlations in arrival directions between astrophysical neutrinos and ultra-high-energy cosmic rays...
KM3NeT is a multi-purpose cubic-kilometer neutrino observatory in construction in the Mediterranean Sea. It consists of ORCA and ARCA (for Oscillation and Astroparticle Research with Cosmics in the Abyss, respectively), currently both with a few detection lines in operation. Although having different primary goals, both detectors can be used for neutrino astronomy over a wide energy range,...
The ANTARES neutrino telescope has been operating in the Mediterranean sea since 2008 in its full configuration, with the main purpose of searching for high-energy cosmic neutrinos. During the last years, multi-messenger astronomy has become one of the most exciting topics in astroparticles, and a promising strategy to identify astrophysical sources of neutrinos. The ANTARES Collaboration is...
