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A candidate redshift z ~ 10 galaxy and rapid changes in that population at an age of 500 Myr
R. J. Bouwens, G. D. Illingworth, I. Labbe +9
Searches for very-high-redshift galaxies over the past decade have yielded a large sample of more than 6,000 galaxies existing just 900-2,000 million years (Myr) after the Big Bang…
The clustering properties of the first galaxies
M. Stiavelli, M. Trenti
We study the clustering properties of the first galaxies formed in the Universe. We find that, due to chemical enrichment of the inter-stellar medium by isolated Population III sta…
Star Clusters in Pseudo-Bulges of Spiral Galaxies
Daiana Di Nino, Michele Trenti, Massimo Stiavelli +3
We present a study of the properties of the star-cluster systems around pseudo-bulges of late-type spiral galaxies using a sample of 11 galaxies with distances from 17 to 37 Mpc. S…
Discovery of z~8 Galaxies in the HUDF from ultra-deep WFC3/IR Observations
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +8
We utilize the newly-acquired, ultra-deep WFC3/IR observations over the HUDF to search for star-forming galaxies at z~8-8.5, only 600 million years from recombination, using a Y_{1…
Metal-Free Gas Supply at the Edge of Reionization: Late-Epoch Population III Star Formation
Michele Trenti, Massimo Stiavelli, Michael Shull
While the average metallicity of the intergalactic medium rises above Z~10^{-3} Zsun by the end of the reionization, pockets of metal-free gas can still exist at later times. We qu…
Mass Segregation in NGC 2298: limits on the presence of an Intermediate Mass Black Hole
Mario Pasquato, Michele Trenti, Guido De Marchi +5
[abridged] Theoretical investigations have suggested the presence of Intermediate Mass Black Holes (IMBHs, with masses in the 100-10000 Msun range) in the cores of some Globular Cl…