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SUMMARY:The HERMES project -- reconstructing the ancient Galaxy - Joss Bla
 nd-Hawthorn (Federation Fellow\, University of Sydney\; Leverhulme Visitin
 g Professor &amp\; Merton Fellow\, University of Oxford)
DTSTART:20100506T153000Z
DTEND:20100506T163000Z
UID:TALK22626@talks.cam.ac.uk
CONTACT:scott chapman
DESCRIPTION:The first building blocks of our Galaxy were likely to have be
 en laid down in the first 300\nmillion years after the Big Bang. The first
  stars that came into being in those early\nstructures have long since dis
 appeared but they may have left behind unique chemical\nsignatures in toda
 y's stellar populations. Over the next 13 billion years\, the Galaxy grew\
 nthrough a series of mergers and acquisitions into the corporate giant tha
 t surrounds us today\n-- 100 billion stars and counting. This was undoubte
 dly a very complex process that we are far\nfrom understanding even with t
 he most sophisticated computer simulations. All stars show\nevidence of ch
 emical signatures that say something about their past. In this talk\, I wi
 ll\ndescribe the basic motivation of the HERMES survey which will attempt 
 to reconstruct the early\nGalaxy history through the technique of chemical
  tagging. The HERMES instrument is a\nmajor new $10M facility at the AAT t
 hat will see first light in 2012.\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 4:00 pm)
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