Helium variations in Galactic and extragalactic Globular Clusters
Solar and Stellar Astrophysics
2020-03-18 v1 Astrophysics of Galaxies
Abstract
The recent measurements of internal variations of helium in Galactic and extragalactic Globular Clusters (GCs) set binding constraints to the models of formation of Multiple Populations (MPs) in GCs, and gave rise, at the same time, to crucial questions related with the influence of the environment on MP formation as well as with the role played by GCs in the early galactic formation. We present the most recent estimates of helium enrichment in the main populations of a large sample of Galactic and extragalactic GCs.
Keywords
Cite
@article{arxiv.1908.11702,
title = {Helium variations in Galactic and extragalactic Globular Clusters},
author = {E. P. Lagioia and A. Milone and A. Marino and A. Dotter and G. Cordoni and M. Tailo},
journal= {arXiv preprint arXiv:1908.11702},
year = {2020}
}
Comments
4 pages, 4 figures; to appear on International Astronomical Union Proceedings Series "Star Clusters: from the Milky Way to the Early Universe"