http://astro.phys.utk.edu/ 2015-04-03T22:57:30-04:00 http://astro.phys.utk.edu/ http://astro.phys.utk.edu/lib/images/favicon.ico text/html 2015-04-02T11:45:23-04:00 bronson http://astro.phys.utk.edu/people:bronson?rev=1427989523&do=diff O. E. Bronson Messer Senior R&D Staff, Oak Ridge Leadership Computing Facility, Oak Ridge National Laboratory & Joint Faculty Associate Professor, Department of Physics and Astronomy, University of Tennessee Address: ORNL P.O. Box 2008 Oak Ridge TN 37831-6354 text/html 2015-01-02T13:47:56-04:00 awsteiner http://astro.phys.utk.edu/activities:index?rev=1420224476&do=diff The ultimate fate of a star depends primarily on its mass when thermonuclear fusion first ignites in its center and whether it is a single star, streaming alone through the Galaxy, or if it shares an orbit with companion star. For single stars whose mass is less than approximately 8 times the mass of the sun, their ultimate fate is to become a Red Giant star and ultimately loose their hydrogen-rich envelope as a Planetary Nebula. The core of such a star becomes a White Dwarf, composed of Heliu… text/html 2015-01-02T13:24:05-04:00 awsteiner http://astro.phys.utk.edu/people:index?rev=1420223045&do=diff Senior Members Christian Cardall Eirik Endeve Michael W. Guidry Wm. Raphael Hix Bronson Messer Anthony Mezzacappa Andrew W. Steiner Jirina Rikovska Stone Junior Members Reuben D. Budiardja Eric Lentz post-doc Suzanne Parete-Koon post-doc text/html 2014-10-21T13:57:23-04:00 raph http://astro.phys.utk.edu/activities:seminar?rev=1413914243&do=diff Date Speaker Title8/27 Organizational Meeting9/3 Eric Lentz CHIMERA supernova simulations9/10 Yuri Kamyshkov Potential Neutron Regeneration Experiment9/17 Konstantin Yakunin Gravitational Waves from Supernovae9/24 Eleftherios MoschandreouHeavy Quarkonia Bound state models10/1 Michael Smith Fires of Creation: Nuclear Information for Big Bang Studies10/8 Stefan Spanier Particle Hunt with the Large Hadron Collider10/15 Fall Break10/22Ben Rybolt Reactor Anti-neutrino Spectrum Structure10/29Loui… text/html 2014-08-22T15:40:22-04:00 reubendb http://astro.phys.utk.edu/activities:genasis?rev=1408736422&do=diff GenASiS: AMR code for True 2D/3D Neutrino Transport To study the mechanism of core-collapse supernova with true 2D/3D neutrino transport, we are developing a new adaptive mesh refinement (AMR) code that couples six-dimensional (three space, three momentum space) special relativistic Boltzmann neutrino transport to three-dimensional special relativistic magnetohydrodynamics, Newtonian self gravity, a nuclear equation of state, and state of the art neutrino opacities. text/html 2012-12-11T14:56:17-04:00 lentz http://astro.phys.utk.edu/activities:chimera:seriesb?rev=1355255777&do=diff New CHIMERA simulations page (Series B) We have updated the four CHIMERA simulations for 12-25 solar mass progenitors and provide some details and downloadable content on this page. Simulation details These models (designated Series B) are started from the pre-supernova progenitors of Woosley & Heger (2007) using 256 angular (theta) zones and 512 radial zones. The initial state extends to 20000-30000 km, which is in the oxygen-rich layers of the progenitor. We use a modern and detailed neut… text/html 2012-12-10T20:15:41-04:00 lentz http://astro.phys.utk.edu/activities:chimera?rev=1355188541&do=diff 2D/3D Ray-by-Ray Neutrino Radiation Hydrodynamics with CHIMERA Our current tool for 2D and 3D supernova simulations is the CHIMERA code. Developed by the CHIMERA team including Steve Bruenn (FAU), John Blondin (NCSU) & Pedro Marronetti (FAU), and UT/ORNL group members Raph Hix, Eric Lentz, Bronson Messer and Tony Mezzacappa, the CHIMERA code employs “ray-by-ray” (RBR) neutrino transport, using Bruenn’s multi-group flux limited diffusion (MGFLD) code, coupled to the Blondin's MVH-3 hydrodyn…