Selected results from IceCube

Abstract Neutrino astronomy saw its birth with the discovery by IceCube of a difFuse flux at energies above 60 TeV intensity comparable to predicted upper limit from extra-galactic sources ultra-high energy cosmic rays (UHECRs). While such an corresponds case calorimetric sources, in which lose all their into photo-pion production, first statistically significant coincident observation between neutrinos and gamma-rays was observed blazar intriguing nature. A very-high-energy muon event, most probable neutrino 290 for E −2.13 spectrum, alerted other observatories triggering large amount investigations many bands electromagnetic (EM) spectrum. high gamma-ray state revealed soon after event follow up about 40 days. posteriori observations also optical radio indicated rise TXS 0506+056 blazar. previous excess events duration more than 100 d higher significance alert itself. These triggered complex modelling simple one zone proton synchrotron models acceleration jets active galactic nuclei (AGNs) across EM second evidence steady 50 reconstructed soft spectrum sample lower well event. hot spot identified catalogue 110 intense emitters starburst galaxies direction compatible NGC 1068 2.9 σ . hosts mildly relativistic jet galaxy, seen not but rather through torus. This Seyfert II galaxy is only 14.4 Mpc Earth. The source turned out be hottest all-sky search. Analysed cumulatively, 3.3 contribution 0506+056, as expected, 2 PKS 1424+240, GB6 J1542+6129, similar features indicating that they might Flat Spectrum Radio Quasars (FSRQs). these directions measured contributing diffuse fluxes hint origin, few percent level end ‘granted’ interactions Galactic Plane. relevant reach telescopes. aspects were discussed conference are summarised this write up.