Workshop II: N-Body Problems in Astrophysics - IPAM

Workshop II: N-Body Problems in Astrophysics

Part of the Long Program Grand Challenge Problems in Computational Astrophysics
April 18 - 22, 2005

Schedule

All times in this Schedule are Pacific Time (PT)

Monday, April 18, 2005

Morning Session

08:00-08:50
Check-In/Light Breakfast (Hosted by IPAM)
08:50-09:00
Welcome and Opening Remarks
09:00-10:00
Ben Moore (Universität Zürich)
N-Body simulations in cosmology
10:00-10:30
Break
10:30-11:30
John Dubinski (University of Toronto)
A Universe in Motion: Testing the Cosmological Paradigm with Galaxy Dynamics
11:30-12:00
()
Title not available

Afternoon Session

12:00-14:00
Lunch (on your own)
14:00-15:00
Wes Petersen (ETH Zurich, Switzerland)
Numerical Methods for Langevin’s Equation in Gravitational Systems
15:00-15:30
Break
15:30-16:30
Jerrold Marsden (California Institute of Technology)
Transport in Celestial and Molecular Systems
16:30-17:00
Katrin Heitmann (Los Alamos National Laboratory)
Robustness of Cosmological Simulations
17:00-19:00
Wine/Cheese Reception (Hosted by IPAM)

Tuesday, April 19, 2005

Morning Session

00:00
Algorithms
08:30-09:00
Continental Breakfast
09:00-10:00
Ben Leimkuhler (University of Leicester)
Time-Reversible Integrators for the N-Body Problem
10:00-10:30
Break
10:30-11:30
Joachim Stadel (Universität Zürich)
Timestepping and Parallel Computing in Highly Dynamic N-body Systems
11:30-12:00
Wayne Hayes (ICS)
On Simulation Reliability: A Shadowing-Based Timestep Criterion for Collisionless N-Body Simulations

Afternoon Session

12:00-14:00
Lunch (on your own)
14:00-15:00
Walter Dehnen (University of Leicester,UK)
Force approximation issues: softening and tree codes
15:00-15:30
Break
15:30-16:30
Seppo Mikkola (University of Turku)
A Comparison of Regularization Methods for few-body interactions
16:30-17:00
()
Title not available

Wednesday, April 20, 2005

Morning Session

00:00
SPH
08:30-09:00
Continental Breakfast
09:00-10:00
Joseph Monaghan (Monash University)
SPH as a Dynamical N-body System
10:00-10:30
Break
10:30-11:30
Andrey Kravtsov (Center for Cosmological Physics)
Cosmological Simulations with Adaptive Mesh Refinement
11:30-12:00
()
Title not available

Afternoon Session

12:00-14:00
Lunch (on your own)
14:00-15:00
Ralf Klessen (Astrophysikalisches Institut Potsdam (AIP))
Modeling Star Formation with Smoothed Particle Hydrodynamics
15:00-15:30
Break
15:30-16:30
Matthew Bate (University of Exeter)
Modelling Stellar Clusters Embedded in Gas
16:30-17:00
()
Title not available

Thursday, April 21, 2005

Morning Session

00:00
Collisional Dynamics
08:30-09:00
Continental Breakfast
09:00-10:00
Sverre Aarseth (University of Cambridge)
Direct N-Body Implementations
10:00-10:30
Break
10:30-11:30
Simon Portegies-Zwart (Universiteit van Amsterdam)
The gravitational trillion body problem
11:30-12:00
Bedros Afeyan (Polymath Research, Inc.)
Denoising Particle-In-Cell Codes Passively and Actively Using Wavelet Techniques: Steps Which May Lead to the Accuracy Found in Discrete Phase Space Grid Vlasov-Poisson Solvers

Afternoon Session

12:00-14:00
Lunch (Hosted by IPAM)
14:00-15:00
Jun Makino (University of Tokyo)
Current Status of GRAPE Project
15:00-15:30
Break
15:30-16:30
Rosemary Mardling (Monash University, Australia)
Gravitational Chemistry
16:30-17:00
Marc Freitag (University of Cambridge)
The Monte Carlo approach: Fast simulations of collisional self-gravitating systems

Friday, April 22, 2005

Morning Session

00:00
Applications and Analysis
08:30-09:00
Continental Breakfast
09:00-10:00
Derek Richardson (University of Maryland)
Collisions in N-body Problems: Techniques and Applications
10:00-10:30
Break
10:30-11:30
Volker Springel (Max Planck Institut fuer Astrophysik)
The universe in a supercomputer: From the first quasars to the large-scale galaxy distribution
11:30-12:00
()
Title not available

Afternoon Session

12:00-14:00
Lunch (on your own)
14:00-15:00
Shane Ross (California Institute of Technology)
Astrophysical transport calculations inspired by chemistry
15:00-15:30
Break
15:30-16:30
Piet Hut (Institute for Advanced Study)
Probing the N-Body Problem for Fun and Profit
16:30
Conclusion
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