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Gore Hall, University of Delaware, Newark, DE 19716, USA

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Exploring Neutrino Astrophysics with IceCube: From Cosmic Fluxes to Sources - Dr. Aswathi Balagopal V.

 

The IceCube Neutrino Observatory, located at the South Pole, has been observing the neutrino sky for more than a decade and we are still unraveling the features of the neutrino flux that we observe. With measurements of neutrinos with energies of hundreds of GeV to several PeV, the main detector array is used for studying the diffuse neutrino flux and its properties, like the flavor ratio of cosmic neutrinos, as well as the sources of these neutrinos. The infill array of IceCube, known as IceCube DeepCore, measures neutrinos of a few GeV to tens of TeV in energy, and can be used for studying low-energy astrophysical transients. I will discuss recent results from IceCube of the diffuse astrophysical neutrino flux and the flavor ratio of these cosmic neutrinos. I will further discuss multi-messenger searches for the source of these neutrinos detected by IceCube, focusing on follow-up campaigns of gravitational waves (GW) detected by LIGO/Virgo detectors. These searches for joint GW-neutrino emission from binary mergers are done with neutrinos detected by both IceCube and IceCube DeepCore, spanning several orders of magnitude in energy.

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