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

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Presentation on theme: "DOE/SciDAC Supernova Science Center (SNSC) S. Woosley (UCSC), A. Burrows (UA), C. Fryer (LANL), R. Hoffman (LLNL)+ 20 researchers."— Presentation transcript:

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

2 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)

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4 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)

5 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)

6 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

7 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

8 Hoffman (LLNL): Nuclear Reaction Database

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

10 Tami Rogers UCSC Penetrative Convection

11 Solar Convection Simulations : Anelastic Code with B - fields

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

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14 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

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

17 Fryer and Warren (LANL): First 3D Simulation

18 Rayleigh-Taylor Mixing in a Type II Supernova

19 Fryer, Warren, and Hungerford 2004: Radioactive Nickel

20 University of Arizona

21 11 Solar Masses Modest Rotation

22 11 Solar Masses Rapid Rotation

23 20 Solar Masses Modest Rotation Torus Formation

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25 Perturbation Study

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27 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

28 VULCAN/2D Numerical Paradigm

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

30 2D MGFLD: Core Collapse and Bounce; Entropy and Velocity Vectors

31 2D MGFLD: Entropy and Neutrino Flux (7.8 MeV)

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33 SN1987A ?


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