Magnesium Isotopes in Halo Stars
Astrophysics
2009-06-23 v1
Abstract
We have determined Mg isotope ratios in halo field dwarfs and giants in the globular cluster M71 based on high S/N high spectral resolution (R = 10) Keck HIRES spectra. Unlike previous claims of an important contribution from intermediate-mass AGB stars to the Galactic halo, we find that our Mg/Mg ratios can be explained by massive stars.
Keywords
Cite
@article{arxiv.0708.3906,
title = {Magnesium Isotopes in Halo Stars},
author = {Jorge Melendez and Judith G. Cohen},
journal= {arXiv preprint arXiv:0708.3906},
year = {2009}
}
Comments
Proceedings, First Stars III, July 16-20, 2007, Santa Fe