Detecting Pop III Objects with NGST

Details Detecting Pop III Objects with NGST Detecting Pop III Objects with NGST

1998-07-28

arxiv.org/abs/astro-ph/9807292v1

Astronomy and Astrophysics

Astrophysics

9 pages, 5 figures, invited talk at the Conference "The Next Generation Space Telescope: Science Drivers and Technological Cha

Scientific paper

We discuss some aspects concerning the formation and the impact of the first luminous structures in the universe (PopIIIs), with particular emphasis on their feedback effects on subsequent galaxy formation. We argue that supernovae in these objects might provide, if detected, important constraints for cosmological models. Some of these constraints come from the gravitational magnification of the supernova flux due to the intervening cosmological matter distribution which results in different predictions, for example, on rates, magnification probability, detection limits and number counts of distant supernovae. We show that NGST can tremendously contribute to such a study due to its advanced technological capabilities.

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