91ÅÝܽ

Synopsis

Neutrinos serve as unique astrophysical messengers, traversing the universe undeflected by magnetic fields and unattenuated by matter, thereby enabling observations of obscured and distant cosmic environments. Following IceCube's successful detection of diffuse astrophysical neutrinos and identification of multi-messenger sources, the Radio Neutrino Observatory in Greenland (RNO-G) will extend neutrino astronomy to ultra-high energies above 10 PeV. Currently under construction with eight operational stations of a planned 35-station array, RNO-G employs radio antennas to detect Askaryan radiation from neutrino-induced particle cascades in ice. Taking advantage of the exceptional radio transparency of Greenland's 3-kilometer-thick ice sheet, RNO-G can instrument a vast detection volume with relatively sparse antenna deployment. RNO-G aims to improve existing limits on the ultra-high energy neutrino flux and potentially achieve the first discovery of EeV neutrinos, serving as a pathfinder for IceCube Gen-2.