Very high-energy gamma-ray follow-up program using neutrino triggers from IceCube
Maryon Ahrens, Christian Bohm, Jonathan P. Dumm, Chad Finley, Samuel Flis, Klas Hultqvist, Christian Walck, Michael Wolf, Marcel Zoll and IceCube Collaboration
Journal of instrumentation, v 11(11), pp P11009-P11009
Annan teknik Engineering and Technology Fysik Gamma telescopes Naturvetenskap Neutrino detectors Other Engineering and Technologies Teknik och teknologier Natural Sciences Physical Sciences
We describe and report the status of a neutrino-triggered program in IceCube that generates real-time alerts for gamma-ray follow-up observations by atmospheric-Cherenkov telescopes (MAGIC and VERITAS). While IceCube is capable of monitoring the whole sky continuously, high-energy gamma-ray telescopes have restricted fields of view and in general are unlikely to be observing a potential neutrino-flaring source at the time such neutrinos are recorded. The use of neutrino-triggered alerts thus aims at increasing the availability of simultaneous multi-messenger data during potential neutrino flaring activity, which can increase the discovery potential and constrain the phenomenological interpretation of the high-energy emission of selected source classes (e. g. blazars). The requirements of a fast and stable online analysis of potential neutrino signals and its operation are presented, along with first results of the program operating between 14 March 2012 and 31 December 2015.