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,
Tel (Office): (865) 574-6124 (FAX): (865) 574-1268
If you should wish to subscribe to Email announcements of the Physics Division Seminars, please send email to "seminar-owner AT orph02 DOT phy DOT ornl DOT gov". In your message, please include your name and postal address, as well as your public email address.
Interesting seminars on related topics are available at the
University of Tennessee Physics Department Colloquium Series.
Core-collapse supernovae are the luminous explosions that herald the
death of massive stars. While core-collapse supernovae are observed on a
daily basis in nature, the details of the mechanism that reverses stellar
collapse and drives these explosions remain unclear. While the most
recent high-fidelity simulations show promise at explaining the explosion
mechanism, there remains tension between theory and observation. This is
likely telling us we are missing important physics in our simulations. I
will discuss some interesting candidates for such missing physics that
could be crucial to the supernova mechanism. In particular, I will
describe our efforts to develop more realistic initial conditions for
supernova simulations with fully 3D massive stellar evolution
calculations. Such realistic 3D initial conditions turn out to be
favorable for successful explosions, in large part because they result in
stronger turbulence behind the stalled supernova shock. I will also
discuss the important role turbulence is playing in the supernova
mechanism and what might be required for accurately modeling the
turbulence in our simulations.
Contact: Alfredo Galindo-Uribarri, 865-574-6124