The Universe’s Largest Particle Accelerators

pH Lecture
Thursday, April 27, 2017 - 4:00pm to 5:00pm
Phillips Auditorium
Harvard-Smithsonian Center for Astrophysics
Abstract: 

Galaxy clusters are the largest gravitationally bound objects in our Universe and are unique laboratories to study fundamental questions in astrophysics. Galaxy clusters grow by mergers with smaller subclusters and galaxy groups. In this talk, I will discuss how merging galaxy clusters can act as giant particle accelerators, producing extremely energetic cosmic rays.