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Modeling galaxy evolution at high-redshift in highly overdense and normal regions

Published online by Cambridge University Press:  10 June 2020

Raphael Sadoun ,
Emilio Romano-Daz ,
Isaac Shlosman  and
Zheng Zheng
Raphael Sadoun
Affiliation:
Department of Earth and Space Science, Graduate School of Science, Osaka University, Osaka560-0043, Japan email: sadoun@astro-osaka.jp Department of Physics & Astronomy, University of Utah, Salt Lake City, UT84112-0830, USA
Emilio Romano-Daz
Affiliation:
Argelander Institut fuer Astronomie, Auf dem Haegel 71, D-53121 Bonn, Germany
Isaac Shlosman
Affiliation:
Department of Earth and Space Science, Graduate School of Science, Osaka University, Osaka560-0043, Japan email: sadoun@astro-osaka.jp Department of Physics & Astronomy, University of Kentucky, Lexington, KY40506-0055, USA
Zheng Zheng
Affiliation:
Department of Physics & Astronomy, University of Utah, Salt Lake City, UT84112-0830, USA
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Abstract

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We present results from high-resolution, zoom-in cosmological simulations to study the effect of feedback from galactic outflows on the physical and Lyα properties of high-redshift galaxies in highly overdense and normal environments at z >∼6. The Lyα properties have been obtained by post-processing the simulations with a Monte-Carlo radiative transfer (RT) code. Our results demonstrate that galactic outflows play an important role in regulating the growth of massive galaxies in overdense regions as well as the temperature and metallicity of the intergalactic medium. In particular, we find that galactic outflows are necessary to reproduce the observed Lyα luminosity functions as well as the apparent Lyα luminosity, line width and equivalent width distributions of luminous Lyα emitters at z ∼ 6.

Keywords

cosmology: theorygalaxies: formationgalaxies: evolutiongalaxies: high-redshiftmethods: numericalradiative transfer
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S341: Challenges in Panchromatic Modelling with Next Generation Facilities , November 2019 , pp. 299 - 301
Copyright
© International Astronomical Union 2020

References

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