Bit behind with KITP program events, mostly due to my deplorable inability to be in two or more places at the same time.
Bit on multiple populations, and then gravitational radiation sources.
Franca d'Antona's talk on multiple stellar populations is here - thought we knew simple main sequence stars?
Hah!
Worried?
You ought to be...
I'll be getting back to multiple populations and why some of us are worried later.
Richard on gravitational waves here follow by Ilya here
Another topic due to get heated.
More on that next week.
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Today we step back and Hans runs The Big Questions past us.
It is always good to think about the Big Picture.
The Big Questions
Most likely scenario for cluster formation:
a) compressed/triggered initial conditions: cloud collisions or intersecting shells, or
b) did globular clusters form as…
In the Good Old Days, Globular Clusters were simple things: spherical, relaxed, coeval and homogenous.
Not so much anymore.
The thorny issue of multiple populations keeps coming up at the workshop.
They're there, something is going on, but what, and how, and Y?
M13 embiggen
Guest author
Natalie…
First, what is a gravitational wave?
I find it interesting that some people are expressing difficulty in understanding what a gravitational wave is, as though everybody (who is not a physicist) has a perfectly good understanding of what any kind of wave is. We don't need to go too deeply beneath…
new week, new topic - actually we'll be doing a lot of extragalactic globulars and the mass function of the clusters, but we start with Guido summarizing what we know about the stellar mass function within the clusters - including mass segregation and differential mass loss.
Wheee.
Sometime…