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Cosmological star formation history

Published online by Cambridge University Press:  25 September 2002

J. Bouvier ,
J.-P. Zahn  and
F. Hammer
F. Hammer*
Affiliation:
DAEC, Observatoire de Paris, France
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Abstract

I review the recent instrumental progresses which allow to directlyobserve galaxy properties at the earliest epochs of the Universe.This leads to the derivation of fundamental quantities, such as theepoch of massive galaxy formation or the universal history of heavyelement formation. Star formation history shows a gradual declinesince the last 8-9 Gyr. The bulk of present-day stellar mass and metalcontent was formed at redshifts 0.5 to ~3, which is consistentwith hierarchical scenarii of galaxy formation. The numerousuncertainties related to these determinations are emphasized,including those linked to stellar physics.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 3: Star Formation and the Physics of Young Stars: Summer school on Stellar Physics X , 2002 , pp. 71 - 84
Copyright
© EAS, EDP Sciences, 2002

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