Age spreads in clusters and associations: the lithium test
Astrophysics
2015-11-11 v1
Abstract
We report the evidence that several low-mass stars (<~0.4 Msun) of the Orion and Upper Scorpius clusters have lithium abundances well below the interstellar value. Due to time-dependent depletion, our result implies stellar ages greater than ~5 Myr, suggesting that star formation has been proceeding for a long time in these systems.
Cite
@article{arxiv.astro-ph/0412213,
title = {Age spreads in clusters and associations: the lithium test},
author = {Francesco Palla and Sofia Randich},
journal= {arXiv preprint arXiv:astro-ph/0412213},
year = {2015}
}
Comments
to appear in IMF@50: The Initial Mass Function 50 years later, eds. E. Corbelli et al. (Kluwer Acad. Press), 2004, in press