Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.3808s&link_type=abstract
American Astronomical Society Meeting 205, #38.08; Bulletin of the American Astronomical Society, Vol. 36, p.1406
Astronomy and Astrophysics
Astronomy
Scientific paper
We derive the expected properties of reionization sources with very low metallicity and show how the z=6 galaxies identified as i-band dropouts in the Hubble Ultra Deep Field and in the GOODS survey would be capable of reionizing the Universe provided their metallicity is very low and/or their mass function is top heavy. We discuss possible alternatives to that of a very low metallicity and how some of these alternatives could be tested with observations.
Fall Michael S.
Panagia Nino
Stiavelli Massimo
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