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Chemodynamics of Lyman alpha emitters, Lyman break galaxies and elliptical galaxies

Published online by Cambridge University Press:  21 April 2007

E. Emsellem ,
H. Wozniak ,
G. Massacrier ,
J.-F. Gonzalez ,
J. Devriendt ,
N. Champavert ,
M. Mori  and
M. Umemura
M. Mori
Affiliation:
Institute of Natural Sciences, Senshu University, Kawasaki, Kanagawa 214-8580, Japan
M. Umemura
Affiliation:
Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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Abstract

We report an ultra-high-resolution simulation that follows evolution from the earliest stages of galaxy formation through the period of dynamical relaxation. The bubble structures of gas revealed in our simulation (<3×108 years) resemble closely the high-redshift Lyman α emitters (LAEs). After 109 years these bodies are dominated by stellar continuum radiation and look like the Lyman break galaxies (LBGs) known as the high-redshift star-forming galaxies at which point the abundance of elements appears to be solar. After 1.3×1010 years, these galaxies resemble present-day ellipticals. The comparisons of simulation results with the observations of elliptical galaxies allow us to conclude that LAEs and LBGs are infants of elliptical galaxies or bulge systems in the nearby universe.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 24: CRAL-2006. Chemodynamics: From First Stars to Local Galaxies , 2007 , pp. 221 - 226
Copyright
© EAS, EDP Sciences, 2007

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