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Event Detail Information

Event Detail Information

Astronomy Colloquium: "New Aspects of Core-Collapse Supernova Theory"

Speaker Christian D. Ott, TAPIR, Caltech
Date Feb 18, 2014
Time 3:45 pm  
Location Astronomy 134
Sponsor Astronomy Department
Event type Colloquia
Views 4836
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 modeling. I discuss this challenge and review recent progress made in the multi-dimensional modeling of the physical mechanism(s) believed responsible for converting the gravitational energy liberated in collapse into energy of the explosion. I outline how detections of gravitational waves and neutrinos from the next nearby core-collapse event can help to observationally probe dynamics and thermodynamics of the supernova engine.