Speaker
Description
The IceCube neutrino alert program led to the observations that suggest that the blazar TXS 0506+056 is a cosmic accelerator, producing high energy cosmic rays, followed by neutrinos and gamma rays from subsequent interactions as these escape the jets. In this talk I will review the motivation for, construction, and science of IceCube, where, the long-sought dream of high-energy neutrino astronomy was finally realised with the observation of a flux of high-energy neutrinos from the Universe. Now that these have been observed, and the first source identified, the goal is to identify more sources, by better analysis methods, or by construction of a larger detector. To this end, the IceCube Upgrade is funded, which will see 7 strings deployed in 2020, and there are plans for IceCube Gen2, which would see another hundred strings deployed to expand the detection volume.
