摘要

Neutrino astronomy is the next frontier for the study of violent phenomena in the Universe. Thanks in particular to their very low interaction cross-section, cosmic neutrinos can indeed travel cosmological distances and would therefore provide us with information of unmached quality on their source of production, should they be detected. This hypothesis has recently gained some weigth with the claim by the IceCube collaboration of the detection of 2 cosmic neutrinos in their Antarctic in-ice detector in a 2-years dataset. If confirmed, this result would correspond to the opening of a 3rd window of observation of the Universe, after electromagnetic radiation and cosmic particles (just one century ago).
Still, much larger detection rate are necessary if we want to make neutrinos a valuable tool for astronomy. We will show here how a giant radio array deployed over mountaineous areas may provide a competitive answer to this challenge. We will also show how the TREND collaboration has worked in the last 5 years to detect cosmic particles with an autonomous array of radio antennas deployed on the site of the 21CMA radio-interformeter, and will detail the steps to be completed before we can consider the deployment of a giant radio-array dedicated to neutrino astronomy.