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Open questions in the study of population III star formation

Published online by Cambridge University Press:  01 June 2008

S. C. O. Glover ,
P. C. Clark ,
T. H. Greif ,
J. L. Johnson ,
V. Bromm ,
R. S. Klessen  and
A. Stacy
S. C. O. Glover
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany Institut für theoretische Astrophysik, Albert-Ueberle Strasse 2, 69120 Heidelberg, Germany
P. C. Clark
Affiliation:
Institut für theoretische Astrophysik, Albert-Ueberle Strasse 2, 69120 Heidelberg, Germany
T. H. Greif
Affiliation:
Institut für theoretische Astrophysik, Albert-Ueberle Strasse 2, 69120 Heidelberg, Germany
J. L. Johnson
Affiliation:
Department of Astronomy, University of Texas, Austin, TX 78712
V. Bromm
Affiliation:
Department of Astronomy, University of Texas, Austin, TX 78712
R. S. Klessen
Affiliation:
Institut für theoretische Astrophysik, Albert-Ueberle Strasse 2, 69120 Heidelberg, Germany
A. Stacy
Affiliation:
Department of Astronomy, University of Texas, Austin, TX 78712
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Abstract

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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.

Keywords

astrochemistrystars: formationgalaxies: formationcosmology: theory

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