There were talks today by Jim Stone (Princeton), talking about accretion disk physics from simulations, and Lauren Porter (UCSC), talking about the fundamental plane of elliptical galaxies from semi-analytic modeling. Interestingly, Porter was trying to understand the observations of the dependence of galaxy properties as a function of distance from the plane, not within the plane. It is so intriguing that the FP has been around for decades and never really been explained in terms of galaxy formation. Porter finds that it is natural for the duration of star formation to be related to position off the plane. When not in seminars, I was working on my mixture-of-Gaussians paper.
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