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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2149
DTSTART:20110331T203000Z
DTEND:20110331T220000Z
DTSTAMP:20260414T164532Z
LAST-MODIFIED:20110321T120211Z
LOCATION:4421 Sterling Hall
SUMMARY:The HERMES project - reconstructing the ancient Galaxy\, Astro
 nomy Colloquium\, Joss Bland-Hawthorn\, Federation Fellow\, University
  of Sydney
DESCRIPTION:The first building blocks of our Galaxy were likely to hav
 e been laid down in the first 300 million years after the Big Bang. Th
 e first stars that came into being in those early structures have long
  since disappeared but they may have left behind unique chemical signa
 tures in today's stellar populations. Over the next 13 billion years\,
  the Galaxy grew through a series of mergers and acquisitions into the
  corporate giant that surrounds us today - 100 billion stars and count
 ing. This was undoubtedly a very complex process that we are far from 
 understanding even with the most sophisticated computer simulations. A
 ll stars show evidence of chemical signatures that say something about
  their past. In this talk\, I will describe the basic motivation of th
 e HERMES survey which will attempt to reconstruct the early Galaxy his
 tory through the technique of chemical tagging. The HERMES instrument 
 is a major new $10M facility at the AAT that will see first light in 2
 013.
URL:https://www.physics.wisc.edu/events/?id=2149
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