RESEARCH
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The rapid evolution of galaxies in the first billion years of the Universe

Silvio Lorenzoni
IA

Abstract
I will introduce one of the most successful techniques to find extremely high redshift galaxies, the Lyman-break technique, and present a selection of robust Lyman-break galaxy candidates at redshifts ~6-10, within the Epoch of Reionization. The work is based on data from WFC3 on the Hubble Space Telescope, the recent Hubble eXtremely Deep Field (XDF) data release and the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey (CANDELS) programme in particular. This sample shows significant and rapid evolution of the galaxies' properties and of their luminosity function with redshift. The star formation history in this time frame and its implications for reionization will also be discussed.

2015 April 15, 14:00

IA/U.Lisboa
Faculdade de CiÍncias da Universidade de Lisboa (C1.4.14)
Campo Grande, 1749-016 Lisboa

Instituto de Astrof√≠sica e Ci√™ncias do Espa√ßo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia