Gamma-ray flares from blazars can be accompanied by high-energy neutrino emission. To better understand this phenomenon, an international research team has statistically analyzed 145 bright blazars.

Three years ago, in the waters of the Mediterranean Sea, the passage of an "ultra-energetic" cosmic neutrino was observed—the most energetic ever detected. The event drew international attention from ...

The neutrino was detected back in February 2023 by a detector deep beneath the Mediterranean Sea.

For the first time, an international collaboration of more than 800 scientists has joined forces to track down the sources of high-energy cosmic neutrinos. By combining neutrino observations with ...

Neutrino astronomy has emerged as a pillar of high-energy astrophysics following the discovery of a diffuse astrophysical neutrino flux by IceCube. The ...

Light curve of the gamma-ray flare (bottom) and collection of quasi-simulated images of the M87 jet (top) at various scales obtained in radio and X-ray during the 2018 campaign. The instrument, the ...

A newly discovered dwarf galaxy orbiting our Milky Way has offered up a surprise — it appears to be radiating gamma rays, according to an analysis by physicists at Carnegie Mellon, Brown, and ...

The data is for 129 blazars (97 FSRQs, 26 BL Lac objects, and 6 BCUs) for a 1 week bin (left) and a 10 yr bin (right) of scenario (2) with A X = 1.0, and γ = 1.5 as a function of the sin(δ) with decl.