Detecting the Transition From Pop III to Pop II Stars

Details Detecting the Transition From Pop III to Pop II Stars Detecting the Transition From Pop III to Pop II Stars

2005-08-08

arxiv.org/abs/astro-ph/0508182v1

New Astron.Rev.50:108-112,2006

Astronomy and Astrophysics

Astrophysics

10 pages, 3 figures; to appear in New Astronomy Reviews as proceedings of "First Light and Reionization Workshop", eds. A. Coo

Scientific paper

10.1016/j.newar.2005.11.013

We discuss the cosmological significance of the transition from the Pop III to Pop II mode of star formation in the early universe, and when and how it may occur in primordial galaxies. Observations that could detect this transition include those of element abundances in metal-poor Galactic halo stars, and of the helium reionization and associated heating of the intergalactic medium. We suggest that gamma-ray bursts may be a better probe of the end of the first-stars epoch than of Pop III stars.

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