Blazars and high-energy astrophysical neutrinos

by Dr Paolo Giommi (Italian Space Agency (ASI) )

Thursday Oct 22, 2020, 3:00 PM → 4:00 PM Europe/Berlin

Auditorium (Institute for Advanced Study (TUM-IAS), Lichtenbergstr. 2a)

Blazars are the most studied kind of extragalactic sources in high-energy astrophysics, as well as promising candidate counterparts of high-energy astrophysical neutrinos. In this presentation I will discuss recent developments in this field, including blazars’ spectral, time-variability and cosmological properties. I will then illustrate the growing evidence for the neutrino-blazars connection, starting from the now famous object TXS0506+056 to the association of known gamma-ray emitting blazars with the (so far) largest statistical sample of IceCube high-energy neutrino tracks, resulting in an excess of 15 +/- 3.6 blazars of the most energetic type, corresponding to a (post-trial) p-value of 3.23 sigma. These results have been achieved thanks to the availability of very large multi-frequency datasets, obtained with the Open Universe platform (https://openuniverse.asi.it), an initiative of the United Nations Office for Outer Space Affairs (UNOOSA) to provide transparent access to astronomical data to the widest possible community, from professional researchers to all people interested in space science.

Please state your mode of participation (on-site or remote) when registering. On-site slots are limited to 17. The talk will be LIVE-STREAMED.

Join Zoom Meeting starting at 14:30

https://tum-conf.zoom.us/j/92231338543

Meeting ID: 922 3133 8543

Passcode: 866992