Searching for Pop III stars and galaxies at high redshift

Details Searching for Pop III stars and galaxies at high redshift Searching for Pop III stars and galaxies at high redshift

2008-09-11

arxiv.org/abs/0809.1988v1

Astronomy and Astrophysics

Astrophysics

8 pages, invited talk, in "Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies", IAU Symp. 255, L.K. Hunt,

Scientific paper

10.1017/S1743921308024599

We review the expected properties of Pop III and very metal-poor starburst and the behaviour the Lyman-alpha and HeII 1640 emission lines, which are most likely the best/easiest signatures to single out such objects. Existing claims of Pop III signatures in distant galaxies are critically examined, and the searches for HeII 1640 emission at high redshift are summarised. Finally, we briefly summarise ongoing and future deep observations at z>6 aiming in particular at detecting the sources of cosmic reionisation as well as primeval/Pop III galaxies.

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