AMON: TeV Gamma and Neutrino Coincidence Alerts from HAWC and IceCube subthreshold data

The era of multimessenger astrophysics has arrived with the simultaneous operation of large cosmic-ray, gamma-ray, neutrino, and gravitational-wave observatories. In just the past two years, an electromagnetic (EM) counterpart was detected for a gravitational wave event, and evidence for an EM count...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2019-08
Main Authors: Hugo Alberto Ayala Solares, the HAWC Collaboration, the IceCube Collaboration
Format: Article
Language:English
Subjects:
Accelerators
Angular resolution
Astrophysics
Cosmic rays
Field of view
Gamma rays
Gravitation
Gravitational waves
High altitude
Neutrinos
Observatories
Universe
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The era of multimessenger astrophysics has arrived with the simultaneous operation of large cosmic-ray, gamma-ray, neutrino, and gravitational-wave observatories. In just the past two years, an electromagnetic (EM) counterpart was detected for a gravitational wave event, and evidence for an EM counterpart of high energy neutrinos has been identified. These measurements have had a major impact on our view of the non-thermal universe, but understanding cosmic accelerators require a substantial increase in the number of multimessenger observations. The Astrophysical Multimessenger Observatory Network (AMON) is designed for high-statistics searches of sub-threshold transient alerts from gamma-ray and neutrino detectors. Within AMON, we have implemented a joint-likelihood analysis of TeV gamma-ray measurements from the High Altitude Water Cherenkov (HAWC) Observatory and neutrinos from the IceCube Neutrino Observatory. AMON is ready to produce real-time coincidence alerts using HAWC "hotspots" and IceCube astrophysical neutrino events. These alerts will be distributed to AMON follow-up partners with a median anticipated delay of six hours, which corresponds to a full transit in the field of view of HAWC. The alerts will have an angular resolution of \({\sim}0.2^{\circ}\), making them well-suited for deep electromagnetic follow-up observations.
ISSN:2331-8422