Open questions in the study of population III star formation

Details Open questions in the study of population III star formation Open questions in the study of population III star formation

2008-08-05

arxiv.org/abs/0808.0608v1

Astronomy and Astrophysics

Astrophysics

15 pages, 2 figures. To appear in the conference proceedings for IAU Symposium 255: Low-Metallicity Star Formation: From the F

Scientific paper

10.1017/S1743921308024526

The first stars were key drivers of early cosmic evolution. We review the main physical elements of the current consensus view, positing that the first stars were predominantly very massive. We continue with a discussion of important open questions that confront the standard model. Among them are uncertainties in the atomic and molecular physics of the hydrogen and helium gas, the multiplicity of stars that form in minihalos, and the possible existence of two separate modes of metal-free star formation.

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