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SUMMARY:New Results from the Cosmic Origins Spectrograph: Missing Baryons\
 , AGN\, and Reionization - Michael Shull (Colorado)
DTSTART:20131024T153000Z
DTEND:20131024T163000Z
UID:TALK43543@talks.cam.ac.uk
CONTACT:Michele Trenti
DESCRIPTION:I present a survey of ultraviolet spectroscopic observations w
 ith the Cosmic Origins Spectrograph on the Hubble Space Telescope. I will 
 describe the current status of the local baryon census\, observations and 
 theoretical modeling of thermal phases of the intergalactic medium (IGM)\,
  and the extent of heavy element transport away from galaxies. Other new r
 esults include the COS composite spectrum of quasar ultraviolet continuum 
 and emission lines\, and probes of the Helium-II epoch of reionization at 
 redshifts z = 2.5 to 3.3. We have also used COS "parallel observations" wi
 th the new Wide-Field Camera-3 to discover high-redshift galaxies likely r
 esponsible for hydrogen reionization at z = 7-8. 
LOCATION:Sackler Lecture Theatre\, IoA (tea at 4:00 pm)
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