Shedding Light on the Universe's Elusive Neutrino Signals
2025.11.27
Research
Failing to see any transient sources in the direction of cosmic neutrino multiplet using wide-field optical telescope data allows researchers to significantly constrain the leading hypothesis about the origin of extremely high-energy particles streaming through the Universe.
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Arrival direction of a high-energy neutrino multiplet event determined by the IceCube experiment, overlaid on the visible night sky (generated with Stellarium). The right panel shows a zoomed-in optical image of the same region. The red ellipse indicates the 1σ uncertainty estimated by IceCube. ©Stellarium, Zwicky Transient Facility