학술논문

Multimessenger Gamma-Ray and Neutrino Coincidence Alerts Using HAWC and IceCube Subthreshold Data
Document Type
article
Source
The Astrophysical Journal. 906(1)
Subject
Nuclear and Plasma Physics
Particle and High Energy Physics
Physical Sciences
astro-ph.HE
Astronomical and Space Sciences
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Physical Chemistry (incl. Structural)
Astronomy & Astrophysics
Astronomical sciences
Particle and high energy physics
Space sciences
Language
Abstract
The High Altitude Water Cerenkov (HAWC) and IceCube observatories, through the Astrophysical Multimessenger Observatory Network (AMON) framework, have developed a multimessenger joint search for extragalactic astrophysical sources. This analysis looks for sources that emit both cosmic neutrinos and gamma rays that are produced in photohadronic or hadronic interactions. The AMON system is running continuously, receiving subthreshold data (i.e., data that are not suited on their own to do astrophysical searches) from HAWC and IceCube, and combining them in real time. Here we present the analysis algorithm, as well as results from archival data collected between 2015 June and 2018 August, with a total live time of 3.0 yr. During this period we found two coincident events that have a false-alarm rate (FAR) of