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When, and how, did the first galaxies and supermassive black holes (SMBH) form, and how did they reionization the Universe? First galaxy formation and cosmic reionization are among the last frontiers ...
X-rays and hard UV radiation From the First Galaxies: Ionization Bubbles and 21 cm Observations
stars: Population III. galaxies: high-redshift. (galaxies:) quasars: general. galaxies: star formation. cosmology: theory. (cosmology:) dark ages, reionization, rst stars
2011/10/9
The first stars and quasars are known sources of hard ionizing radiation in the first billion years of the Universe. We examine the joint effects of X-rays and hard UV radiation from such first-light ...
The First Galaxies: Assembly of Disks and Prospects for Direct Detection
cosmology observations galaxies formation galaxies
2010/11/9
The James Webb Space Telescope (JWST) will enable observations of galaxies at redshifts z & 10 and hence allow to test our current understanding of structure formation at very early times. Previous wo...
Where are the Fossils of the First Galaxies? II. True Fossils, Ghost Halos, and the Missing Bright Satellites
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
We use a new set of cold dark matter simulations of the local universe to investigate the distribution of fossils of primordial dwarf galaxies within, and around the Milky Way.
Where are the Fossils of the First Galaxies? I. Local Volume Maps and Properties of the Undetected Dwarfs
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
We present a new method for generating initial conditions for LCDM N-body simulations which provides the dynamical range necessary to follow the evolution and distribution of the fossils of the first ...
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