Secular evolution of self-gravitating systems

17 Apr 2023, 09:00 → 19 Apr 2023, 17:00 Europe/London

4305 (HC Seminar Room)

Self-gravitating systems -- such as star clusters, stellar discs, and dark matter halos -- are rich with dynamical phenomena. They exhibit both resonant (long-range) and non-resonant (short-range) dynamics, with unclear transition regimes. The coupling of linear response theory, kinetic theory, quasilinear theory, and N-body approaches for studying self-gravitating systems is now within reach, owing to recent theoretical breakthroughs. This workshop will bring together dynamicists with expertise in all these areas for a direct comparison of techniques.

Monday 17 April

09:00 → 10:00 Welcome

Wrap-up, summary, led by Mike Petersen

10:00 → 11:00 Linear Response Theory

Small group discussions

11:00 → 11:30 Coffee Break

11:30 → 13:00 Linear Response Theory

Small group discussions

13:00 → 14:00 Lunch

14:00 → 15:00 Kinetic Theory

Discussion led by Eugene Vasiliev and Anna Lisa Varri

15:00 → 15:30 Coffee Break

15:30 → 17:00 Kinetic Theory

Small group discussions

Tuesday 18 April

10:00 → 11:00 Quasilinear Theory

Discussion led by Chris Hamilton

11:00 → 11:30 Coffee Break

11:30 → 13:00 Quasilinear Theory

Discussion led by Chris Hamilton

13:00 → 14:00 Lunch

14:00 → 15:00 Non-resonant vs resonant dynamics

Discussion led by Mathieu Roule

15:00 → 15:30 Coffee Break

15:30 → 17:00 Non-resonant vs resonant dynamics

Discussion led by Mathieu Roule

Wednesday 19 April

10:00 → 11:00 Comparing theory and simulations

Discussion led by Mike Petersen

11:00 → 11:30 Coffee Break

11:30 → 13:00 Comparing theory and simulations

Discussion led by Mike Petersen

13:00 → 14:00 Lunch

14:00 → 15:00 Potential Fluctuation Theory

Small group discussions

15:00 → 15:30 Coffee Break

15:30 → 16:30 Potential Fluctuation Theory

Small group discussions

16:30 → 17:00 Welcome: Conclusion

Wrap-up, summary, led by Mike Petersen