Tuesday Physics Seminar: Gamma-Ray Bursts Conference/Lecture Tuesday, February 26, 2019 The event started -2039 days agoMultiday event - 0 days 2:50 PM 3:50 PM Optics Building Room 234 GRBs/CBC/FRBs: A Tale of Three Transients Dr. Bing Zhang (University of Nevada Las Vegas) I will discuss three exciting fields in transient astrophysics: gamma-ray bursts (GRBs), electromagnetic counterparts of compact binary coalescence (CBC) gravitational wave sources, and fast radio bursts (FRBs). I will first summarize the recent progress in constraining jet composition, energy dissipation and radiation mechanism of GRBs with the help of the Fermi GBM data and then discuss the physical implications of the ground-breaking discovery of the GW170817/GRB 170817A association. Then I will move on to discuss other electromagnetic counterparts of different species of CBC systems, including the theoretical motivation for a magnetar-powered X-ray transient associated with an NS-NS merger and the observational evidence of such transients from the Chandra Deep Field South archival data. Finally, I will briefly discuss another type of mysterious cosmological transients named FRBs, and some possible ideas of interpreting them. Based on a comparison between the FRB and GRB fields, I will argue that there could exist non-repeating FRBs of catastrophic origins. Some possible mechanisms for generating FRBs from CBC systems will be outlined. Details Category Conference/Lecture department College of Science, Physics and Astronomy Audience Public, Students, Faculty and Staff, Alumni Contact Ming Sun This email address is being protected from spambots. You need JavaScript enabled to view it. Venue Optics BuildingJohn Wright Blvd.Huntsville, AL 35899View map More Dates SHARE