last week of the globs workshop, so the pace is stepped up, with two talks this afternoon
Michele on dynamical evolution (video and podcast)
32k runs, parametric over initial conditions
evolved mass function, primordial binaries, tidal field, variable initial concentration, IMBH presence
Glenn on dynamical Schwarzschild modeling (video and podcast)
Schwarzschild orbit models
First intro to state of the art for fitting galaxy models
using Sauron integral field spectroscopy plus photometry
and get h3 and h4 of course (gaussian weighted skew and kurtosis for you heathens)
Nice models
then apply to globulars (tricky... orbits are collisional! no integrals of motion...)
but... there is always ω Cen to the risky
long central relaxation time and amazing data - 10,000 proper motions from plates
and 4,000 high precision radial velocities - with few hundred star overlap between data sets
so do full solution for ω Cen distribution function
hmm... they have a rotating disk at around the core radius, about 4% by mass
Hmmmmmmm
good thing t_rel is long eh
and then I had to leave... must see end of Glenn's talk on video or get his slides.
Very important point!
&omgea; Cen has now a very well measure M/L and it is 2.5 +/- 0.1 or so
right where it should be!
Hm.