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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-1206
DTSTART:20080715T170000Z
DURATION:PT1H0M0S
DTSTAMP:20260506T210143Z
LAST-MODIFIED:20080722T194142Z
LOCATION:6515 Sterling Hall
SUMMARY:Secrets from the Stellar Nursery\, Special Astronomy Talk\, Al
 ison Sills\, McMaster University
DESCRIPTION:Globular clusters are some of the simplest objects in the 
 universe. For this reason\, they are fundamental test beds to understa
 nd star formation and evolution in much more complex systems like gala
 xies. Globular clusters are spherical clusters of hundreds of thousand
 s of stars\, all of which were formed at the same time\, in the same p
 lace and from the same material. They are old\, and have been passivel
 y evolving for almost the age of the universe. They are quite beautifu
 l\, and also rather boring. Or so generations of astronomical students
  have been taught until a few years ago. I will present evidence that 
 these ancient objects have been keeping secrets from us\, and that the
  events in their stellar nurseries were not quite as simple as we had 
 thought. There is increasing evidence that there is more than one stel
 lar generation in globular clusters - not just a single &amp\;quot\;ba
 by boom&amp\;quot\;\, but a complex interplay of stellar birth\, death
 \, and rebirth. I will then discuss some of the implications of\, and 
 problems with\, this new scenario.
URL:https://www.physics.wisc.edu/events/?id=1206
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