The infant Milky Way
Abstract
We investigate the physical properties of the progenitors of today living Milky Way-like galaxies that are visible as Damped Lya Absorption systems and Lya Emitters at higher redshifts (z ~ 2.3,5.7). To this aim we use a statistical merger-tree approach that follows the formation of the Galaxy and its dwarf satellites in a cosmological context, tracing the chemical evolution and stellar population history of the progenitor halos. The model accounts for the properties of the most metal-poor stars and local dwarf galaxies, providing insights on the early cosmic star-formation. Fruitful links between Galactic Archaeology and more distant galaxies are presented.
Cite
@article{arxiv.1204.1943,
title = {The infant Milky Way},
author = {Stefania Salvadori and Andrea Ferrara},
journal= {arXiv preprint arXiv:1204.1943},
year = {2012}
}
Comments
6 pages, 6 figures; to appear in the proceedings of the Subaru conference on Galactic Archaeology, Shuzenji, Japan (Nov. 1-4 2011); Astronomical Society of the Pacific Conference Series 2012