IPAM Institute for Pure and Applied Mathematics UCLA NSF
Skip Navigation Links
Home
People
Programs
Visitors
Contact
Donate
Search

Workshop II: N-Body Problems in Astrophysics

April 18 - 22, 2005

IPAM Building
Room 1200

Printable Version

Monday, April 18, 2005

Morning Session

8:00 - 8:50 Check-In/Breakfast (Hosted by IPAM)
8:50 - 9:00 Welcome and Opening Remarks
9:00 - 10:00

Ben Moore (University of Zurich)

"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 "
Presentation (PDF File)

11:30 - 12:00

To Be Announced

12:00 - 2:00 Lunch (on your own)

Afternoon Session

2:00 - 3:00

Wes Petersen (ETH Zurich, Switzerland)

"Numerical Methods for Langevin’s Equation in Gravitational Systems"
Presentation (PDF File)

3:00 - 3:30 Break
3:30 - 4:30

Jerrold Marsden (California Institute of Technology)

"Transport in Celestial and Molecular Systems "

4:30 - 5:00

Katrin Heitmann (Los Alamos National Laboratory)

"Robustness of Cosmological Simulations"
Presentation (PDF File)

5:00 - 7:00 Wine/Cheese Reception (Hosted by IPAM)

Tuesday, April 19, 2005

Algorithms

Morning Session

8:30 - 9:00 Continental Breakfast
9:00 - 10:00

Ben Leimkuhler (University of Leicester,UK)

"Time-Reversible Integrators for the N-Body Problem"

10:00 - 10:30 Break
10:30 - 11:30

Joachim Stadel (University of Zurich)

"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"
Presentation (PDF File)

12:00 - 2:00 Lunch (on your own)

Afternoon Session

2:00 - 3:00

Walter Dehnen (University of Leicester,UK)

"Force approximation issues: softening and tree codes"
Presentation (PDF File)

3:00 - 3:30 Break
3:30 - 4:30

Seppo Mikkola (University of Turku)

"A Comparison of Regularization Methods for few-body interactions "
Presentation (PDF File)

4:30 - 5:00

To Be Announced


Wednesday, April 20, 2005

SPH

Morning Session

8:30 - 9:00 Continental Breakfast
9:00 - 10:00

Joseph Monaghan (Monash University, Australia)

" SPH as a Dynamical N-body System"
Presentation File (Zip File)

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

To Be Announced

12:00 - 2:00 Lunch (on your own)

Afternoon Session

2:00 - 3:00

Ralf Klessen (Astrophysical Institute of Potsdam)

"Modeling Star Formation with Smoothed Particle Hydrodynamics"
Presentation (PDF File)

3:00 - 3:30 Break
3:30 - 4:30

Matthew Bate (University of Exeter)

"Modelling Stellar Clusters Embedded in Gas"
Presentation (PDF File)

4:30 - 5:00

To Be Announced


Thursday, April 21, 2005

Collisional Dynamics

Morning Session

8:30 - 9:00 Continental Breakfast
9:00 - 10:00

Sverre Aarseth (Cambridge University)

"Direct N-Body Implementations"
Presentation (PDF File)

10:00 - 10:30 Break
10:30 - 11:30

Simon Portegies-Zwart (Sterrenkundig Instituut "Anton Pannekoek")

"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"

12:00 - 2:00 Lunch (Hosted by IPAM)

Afternoon Session

2:00 - 3:00

Jun Makino (University of Tokyo)

"Current Status of GRAPE Project"

3:00 - 3:30 Break
3:30 - 4:30

Rosemary Mardling (Monash University, Australia)

"Gravitational Chemistry"
Presentation (PDF File)
Additional Presentation Files (Zip Archive)
Presentation (PowerPoint File)
Additional Presentation Files (Zip Archive)

4:30 - 5:00

Marc Freitag (Northwestern University)

"The Monte Carlo approach: Fast simulations of collisional self-gravitating systems"
Presentation (PDF File)


Friday, April 22, 2005

Applications and Analysis

Morning Session

8:30 - 9:00 Continental Breakfast
9:00 - 10:00

Derek Richardson (University of Maryland)

"Collisions in N-body Problems: Techniques and Applications"
Presentation File (Zip File)

10:00 - 10:30 Break
10:30 - 11:30

Volker Springel (Max Planck Institute for Astrophysics)

"The universe in a supercomputer: From the first quasars to the large-scale galaxy distribution"

11:30 - 12:00

To Be Announced

12:00 - 2:00 Lunch (on your own)

Afternoon Session

2:00 - 3:00

Shane Ross (University of Southern California)

"Astrophysical transport calculations inspired by chemistry"
Presentation (PDF File)

3:00 - 3:30 Break
3:30 - 4:30

Piet Hut (Institute for Advanced Studies, Princeton)

"Probing the N-Body Problem for Fun and Profit"
Presentation (PDF File)

4:30 Conclusion

NSF Math Institutes   |   Webmaster