Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268

Thu., November 19, 2015, at 3:00 PM - 4:00 PM (refreshments served at 2:40 PM)

New Insights into Massive Star Explosions and an Update on Advanced LIGO

Christian D. Ott, California Institute of Technology, Pasadena, CA
Physics Division, Bldg. 6008 Large Conference Room

Core-collapse supernovae from massive stars are among the most energetic events in the universe. They liberate a mass-energy equivalent of ~15% of a solar mass in the collapse of their progenitor star's core. The majority (~99%) of this energy is carried away by neutrinos, while (~1%) is transferred to the kinetic energy of the explosive outflow. A smaller, yet still tremendous amount of energy is emitted in electromagnetic and gravitational waves. The stellar collapse phenomenon and its range of outcomes pose a formidable challenge to computational simulation. I discuss recent advances made on the basis of new 3D simulations and highlight the role of turbulence and magnetic fields in the core-collapse supernova phenomenon. I go on to discuss opportunities to study core-collapse supernovae using gravitational wave observations by Advanced LIGO and provide a status update on the Advanced LIGO experiment.

Alfredo Galindo-Uribarri, (865) 574-6124