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SUMMARY: COSMIC METAL ENRICHMENT - Andrea Ferrara\, Scuola Normale Superio
 re\, Pisa
DTSTART:20090507T153000Z
DTEND:20090507T163000Z
UID:TALK15501@talks.cam.ac.uk
CONTACT:scott chapman
DESCRIPTION:After the Bing Bang the cosmic gas had a composition\nwhich wa
 s (virtually) free of heavy elements. Yet\, every single parcel\nof gas th
 at we can probe today with our most powerful telescopes\nshows the signs o
 f considerable amounts of metals\, up to the highest redshifts. When these
  metals where first produced\, by what sources\, and how these atomic spec
 ies traveled away from their production sites are among the most challengi
 ng puzzles in current cosmological scenarios. I will discuss the open prob
 lems and the corresponding experimental data in detail. I will then propos
 e viable explanations that eventually might results in a coherent picture 
 of the history of cosmic metal enrichment.\n\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 4.00 pm)
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