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SUMMARY:The Observational Quest for the Earliest Galaxies: Progress &amp\;
  Challenges - Richard Ellis (ESO/UCL)
DTSTART:20161110T160000Z
DTEND:20161110T170000Z
UID:TALK67530@talks.cam.ac.uk
CONTACT:Simon Hodgkin
DESCRIPTION:The first billion years after the Big Bang represents the fina
 l observational frontier in assembling a coherent picture of cosmic histor
 y.  During this period early stars and galaxies formed and hydrogen in the
  intergalactic medium transitioned from a neutral gas to one that was full
 y ionized. Recent\nmeasures of electron scattering of microwave background
  photons by the Planck satellite suggest\nthat reionization was a rapid pr
 ocess occurring over the redshift range 6-12. This raises the exciting pro
 spect that we may be able to directly observe the first generation of gala
 xies. Deep exposures with the Hubble Space Telescope provide the primary e
 vidence that star-forming galaxies were present during the relevant period
 . Detailed spectroscopy is now required to relate their early formation to
  cosmic \nreionization. I will review the rapid progress being made in thi
 s area with current facilities\, and the prospects with upcoming ones\, in
 cluding the James Webb Space Telescope.
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
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