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Effect of Reionization on High-z Stellar Populations

Babich, Daniel (2009) Effect of Reionization on High-z Stellar Populations. In: New Quests in Stellar Astrophysics II. Astrophysics and Space Science Proceedings. Springer , New York, NY, pp. 19-23. ISBN 978-0-387-87621-4.

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I will discuss the effects of inhomogeneous reionization on the Spectral Energy Distributions (SED) of galaxies at high redshifts. The formation process of the ionizing sources is modulated by large scale density modes. This makes reionization inhomogeneous and introduces a spread to the reionization times of different regions with the same size. These scale-dependent fluctuations modify the shape of the power spectrum of low-mass galaxies at high redshifts in a way that depends on the history of reionization. High-mass galaxies are affected in a more subtle manner; their star formation histories depend on the local minimum mass of star formation. This produces changes in the SEDs of the galaxies.

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Additional Information:© 2009 Springer. I would like to thank the Betty and Gordon Moore Foundation for financial support. I would also like to thank my collaborators, Avi Loeb, Dan Stark, Oliver Zahn, and Andrew Benson, for their efforts and the organizers of the conference for providing with such a beautiful location to discuss astrophysics.
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Gordon and Betty Moore FoundationUNSPECIFIED
Series Name:Astrophysics and Space Science Proceedings
Record Number:CaltechAUTHORS:20100510-152209675
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18228
Deposited By: Jason Perez
Deposited On:24 Jun 2010 19:08
Last Modified:05 May 2020 18:44

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