Hep 20181228 Ultra-high energy cosmic ray and neutrinos in the multi-messenger era

by Dr Anatoli Fedynitch (DESY Zeuthen, Germany)

Friday 28 Dec 2018, 16:40 → 17:30 Asia/Shanghai

Meeting Room 410,TDLI（Tsung-Dao Lee Library）

Abstract

While the precision of experimental data keeps improving, the likely extragalactic accelerators of ultra-high energy cosmic rays (UHECR) and astrophysical neutrinos remain vastly unknown. So far, only the blazar TXS0506+056 (TXS), indicates a coincident emission of high-energy neutrinos together with a broadband photon spectrum. Blazars such as TXS are collimated relativistic outflows from active galactic nuclei and among the brightest persistent radiation sources in the universe. The recent detection by the IceCube Observatory supports the hypothesis that blazars accelerate cosmic rays beyond PeV energies, challenging at the same time conventional theoretical models. In this seminar I will give an overview about theoretical multi-messenger research, summarizing the current progress and investigating the TXS case in higher detail.

Biography

2016 – present: Post-doc in Theoretical Astroparticle Physics, DESY Zeuthen, Germany

2012 – 2015: Technical doctoral student (Gentner Scholarship), CERN, Geneva and KIT, Karlsruhe

2010 – 2011: Research assistant, Ruhr-University, Bochum, Germany

2012 - 2015: PhD in Physics (magna cum laude), Karlsruhe Institute of Technology (KIT), Germany,

Supervision by Prof. J. Blümer and Prof. Dr. Ralph Engel

Division

Particle and Nuclear