Orateur
Description
A decade has passed since high-energy astrophysical neutrinos have
been discovered by IceCube, although their progenitors are not yet
fully known. The reported coincidence of the high-energy IceCube-170922A with the gamma-ray blazar TXS 0506+056 has not definitively proven that these type of sources are the dominant high-energy neutrino emitters in the Universe.
In fact, IceCube recently announced a second correlation at a nearby
Seyfert galaxy, NGC 1068, which is not the same type as the
gamma-emitting blazars. The hunt for counterparts of the IceCube
neutrinos using gamma-ray telescopes started in 2012.
Nonetheless, these efforts will continue with the next-generation gamma-ray telescopes, such as the CTA Large Size Telescopes (LSTs), by means of
an improved and revised observation strategy. These new observations
will allow us to detect enough sources in order to elucidate the
mystery of the neutrino emitters.
In this contribution, we summarize the efforts made thus far in the
search for gamma-ray counterpart of high-energy IceCube events,
focusing on alerts made of multiple neutrinos events, and present an
idea for improvements in the observational strategies proposed from
the gamma-ray telescopes that will become operational in the coming decade.
