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The Galactic halo: stellar populations and their chemical properties

Published online by Cambridge University Press:  05 March 2015

John E. Norris
John E. Norris*
Affiliation:
Research School of Astronomy and Astrophysics, The Australian National University, Weston, ACT 2611, Australia email: [email protected]
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Abstract

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Below [Fe/H] = −3.0, there is an enormous range in [C/Fe]. We discuss the properties of C-rich ([C/Fe] > +0.7) and C-normal ([C/Fe] ≤ +0.7) stars in this regime, and suggest that there existed two different gas cooling channels in the very early Universe.

Keywords

stars: abundancesGalaxy: abundancesGalaxy: halocosmology: early Universe
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Highlights H16: Highlights of Astronomy , August 2012 , pp. 280 - 281
Copyright
Copyright © International Astronomical Union 2015 

References

Beers, T. C. & Christlieb, N. 2005, ARA&A, 43, 531Google Scholar
Bromm, V. & Loeb, A. 2003, Nature, 425, 812Google Scholar
Frebel, A. & Norris, J. E. 2011, arXiv:1102.1748Google Scholar
Fryer, C. L., Woosley, S. E., & Heger, A. 2001, ApJ, 550, 372Google Scholar
Norris, J. E., Yong, D., Bessell, M. S., et al. 2012, ApJ, submittedGoogle Scholar
Schneider, R., Omukai, K., Inoue, A. K., & Ferrara, A. 2006, MNRAS, 369, 1437Google Scholar
Umeda, H. & Nomoto, K. 2003, Nature, 422, 871Google Scholar
Yong, D., Norris, J. E., Bessell, M. S., et al. 2012, ApJ, in pressGoogle Scholar