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The high-redshift Universe with the International X-ray Observatory
Galaxies active – X-rays Active Galactic Nuclei – galaxies high-redshift
2010/11/10
We discuss some of the main open issues related to the light–up and evolution of the first accreting sources powering high redshift luminous quasars.We discuss the perspectives of future deep X–ray su...
Constraining the Minimum Mass of High-Redshift Galaxies and Their Contribution to the Ionization State of the IGM
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
We model the latest HST WFPC3/IR observations of > 100 galaxies at redshifts z=7-8 in terms of a hierarchical galaxy formation model with starburst activity. Our model provides a distribution of UV lu...