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arXiv · astro-ph/0401617

Dusty Starbursts and the Growth of Cosmic Structure

David Elbaz·Emmanuel Moy
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Abstract

Dusty starbursts were more numerous around z~1 than today and appear to be responsible for the majority of cosmic star formation over the Hubble time. We suggest that they represent a common phase within galaxies in general which is triggered by the growth of cosmic structure. We discuss the origin of the luminosity of luminous infrared galaxies at z~1. Are these galaxies dominated by star formation or nuclear activity ? What is triggering their strong activity ? Is it triggered by external interactions or did it happen naturally within isolated galaxies ? We present HST-ACS high resolution optical images of luminous infrared galaxies at z~0.7 showing the evolution of the morphology of these galaxies as a function of infrared luminosity, or star formation rate, and discuss the effect of the environment on their activity.

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David Elbaz, Emmanuel Moy. 2004-01-29. Dusty Starbursts and the Growth of Cosmic Structure. https://doi.org/10.1007/0-306-48570-2_36

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