The infrared channel of the Wide-Field Camera 3 on the Hubble Space Telescope revealed multiple main sequences of very low-mass stars in the globular clusters NGC 2808 and Omega Centauri. In this paper I summarize the observational facts and provide a possible interpretation.
@article{arxiv.1211.0685,
title = {Multiple Sequences of M-dwarfs in NGC 2808 and Omega Centauri},
author = {A. P. Milone},
journal= {arXiv preprint arXiv:1211.0685},
year = {2012}
}
Comments
2 pages, 1 figure; Invited talk presented at Special Session 1 "Origin and Complexity of Massive Star Clusters" at IAU General Assembly XXVIII, Beijing 2012. To appear in Highlights of Astronomy