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Cosmic Dawn and the Epoch of Reionization
  OKC colloquia

Tuesday 04 March 2014
from 13:15 to 15:00
at FA 32
Speaker : Garrelt Mellema (Stockholm University/OKC)
Abstract : In this talk I will give an overview of our current knowledge about the era of the formation of the first stars and galaxies in the Universe, which ended with the complete reionization of the Universe. According to our current understanding the very first stars formed in a neutral and cold Universe some 50 million years after the Big Bang. By the time the reached an age of 1 billion years radiation produced by stars, supernovae and accreting objects had completely ionized and heated the Universe. I will go through the basic theory and the constraints provided by current measurements. I will also describe what can be expected from future measurements, specifically measurements of the 21cm signal from neutral hydrogen with LOFAR and the SKA.

AlbaNova  | Last modified 21 January 2014 14:33  |  HELP