DOE/SciDAC Supernova Science Center (SNSC) S. Woosley (UCSC), A. Burrows (UA), C. Fryer (LANL), R. Hoffman (LLNL)+ 20 researchers

Outline Institutions and Core Projects Institutions and Core Projects Codes, Simulation Capabilities, ISICS, Platforms, Visualization Codes, Simulation Capabilities, ISICS, Platforms, Visualization List of Major Accomplishments to date List of Major Accomplishments to date Representative Scientific Results (graphics and animations) Representative Scientific Results (graphics and animations)

Codes and Capabilities 2D/3D Anelastic hydro; spectral methods (+MHD) (Glatzmaier) 2D/3D Anelastic hydro; spectral methods (+MHD) (Glatzmaier) VULCAN/2D Boltzmann/hydro (6D) (TOPS) VULCAN/2D Boltzmann/hydro (6D) (TOPS) Implicit Stellar Evolution (Kepler) Implicit Stellar Evolution (Kepler) 2D/3D Stellar Evolution 2D/3D Stellar Evolution 3D Hydro/diffusion (statistical methods) 3D Hydro/diffusion (statistical methods) 2D/3D Thermonuclear combusion (APDEC) 2D/3D Thermonuclear combusion (APDEC) FLASH 2D/3D Hydro code FLASH 2D/3D Hydro code 3D Monte Carlo radiation transport 3D Monte Carlo radiation transport 3D Special relativistic hydro (GRBs) 3D Special relativistic hydro (GRBs) Nuclear Network solver(s) Nuclear Network solver(s) Visualization infrastructure at Arizona (Hariri) Visualization infrastructure at Arizona (Hariri)

Main Computers and Platforms NERSC/seaborg NERSC/seaborg ORNL/cheetah, eagle ORNL/cheetah, eagle Beowulfs at LANL, UCSC, U.Arizona Beowulfs at LANL, UCSC, U.Arizona ASCI Q (LANL) ASCI Q (LANL)

Computational Nuclear Astrophysics Core-Collapse Supernovae (Grid-based & Statistical methods) Core-Collapse Supernovae (Grid-based & Statistical methods) Thermonuclear Supernovae (Type Ia) Thermonuclear Supernovae (Type Ia) Gamma-Ray Bursts Gamma-Ray Bursts X-ray Bursts X-ray Bursts Stellar Convection simulations (2D/3D) Stellar Convection simulations (2D/3D) World-class Nuclear Data Archive World-class Nuclear Data Archive 1-,2-,3-D Radiation/Hydrodynamics 1-,2-,3-D Radiation/Hydrodynamics Astrophysical Flame Physics Astrophysical Flame Physics Collaboratory- Vertically Integrated Nuclear Astrophysics: Stellar Evolution - Nucleosynthesis - Supernova Explosions - Light Curves Collaboratory- Vertically Integrated Nuclear Astrophysics: Stellar Evolution - Nucleosynthesis - Supernova Explosions - Light Curves

Major Accomplishments First 3D Simulation of Core-Collapse Supernova (Diffusion) First 3D Simulation of Core-Collapse Supernova (Diffusion) First 2D Boltzmann Rad/Hydro Simulation in Core Collapse: Multi-group, multi-angle First 2D Boltzmann Rad/Hydro Simulation in Core Collapse: Multi-group, multi-angle First 3D Relativistic GRB Jet Calculation First 3D Relativistic GRB Jet Calculation First Fully-Resolved 3D Rayleigh-Taylor Nuclear Burning Study in Type Ia Supernova Context and 3D Simulation of Onset of Ignition First Fully-Resolved 3D Rayleigh-Taylor Nuclear Burning Study in Type Ia Supernova Context and 3D Simulation of Onset of Ignition First 1600-Species Nuclear Network Calculation for X- Ray Bursts First 1600-Species Nuclear Network Calculation for X- Ray Bursts Assembly of the World’s Most Comprehensive Nuclear Reaction Database Assembly of the World’s Most Comprehensive Nuclear Reaction Database 3D Stellar Convection simulations: sun, massive stars 3D Stellar Convection simulations: sun, massive stars

Hoffman (LLNL): Nuclear Reaction Database

Glatzmaier, 3D Anelastic MHD : Pulsar B-Fields?

Tami Rogers UCSC Penetrative Convection

Solar Convection Simulations : Anelastic Code with B - fields

T 8 = 7 Kuhlen et al. UCSC 3D Nuclear Burning

Bell, Day, Rendleman, Woosley, and Zingale, ApJ (2004) r = 1.5 x 10 7 g cm -3 Carbon mass fraction. Red is 50%. Blue is zero Nuclear fusion flame subject to both burning and the Rayleigh-Taylor instability. g Fuel Ash In collaboration with CCSE/LBL Group Type Ia Supernova Fusion Flame

Onion Skin Structure: The Mote in the Eye of the Storm

Fryer and Warren (LANL): First 3D Simulation

Rayleigh-Taylor Mixing in a Type II Supernova

Fryer, Warren, and Hungerford 2004: Radioactive Nickel

University of Arizona

11 Solar Masses Modest Rotation

11 Solar Masses Rapid Rotation

20 Solar Masses Modest Rotation Torus Formation

Perturbation Study

VULCAN/2D Multi-Group, Multi-Angle, Time-dependent Boltzmann/Hydro (6D) Arbitrary Eulerian-Lagrangian (ALE); remapping Arbitrary Eulerian-Lagrangian (ALE); remapping 6 - dimensional (1(time) + 2(space) + 2(angles) + 1(energy-group)) 6 - dimensional (1(time) + 2(space) + 2(angles) + 1(energy-group)) Moving Mesh (FE) Moving Mesh (FE) 2D multi-group, multi-angle, S n (~150 angles), implicit transport 2D multi-group, multi-angle, S n (~150 angles), implicit transport Axially-symmetric; Rotation Axially-symmetric; Rotation Flux-conservative; smooth matching to diffusion limit Flux-conservative; smooth matching to diffusion limit Developing TOPS collaboration: solvers, pre- conditioners for transport (PETSc/Hypre) (needs speed) Developing TOPS collaboration: solvers, pre- conditioners for transport (PETSc/Hypre) (needs speed) First 2D Boltzmann rad/hydro code in astrophysics First 2D Boltzmann rad/hydro code in astrophysics

VULCAN/2D Numerical Paradigm

Color Map: Ye Vectors: Flux Multi-Group Multi-Angle Boltzmann Transport Livne, Burrows, et al. 2004, Ap.J. in press

2D MGFLD: Core Collapse and Bounce; Entropy and Velocity Vectors

2D MGFLD: Entropy and Neutrino Flux (7.8 MeV)

SN1987A ?