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Very Metal-Poor Stars and the Early Universe

Published online by Cambridge University Press:  02 August 2018

John E. Norris
Affiliation:
Research School of Astronomy and Astrophysics, The Australian National University, Canberra, ACT 2611, Australia email: jen@mso.anu.edu.au
Corresponding
E-mail address:
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Abstract

Very metal-poor stars ([Fe/H] < –2.0) inform our understanding of the formation and evolution of the Galaxy, and the physical conditions in the earliest star-forming environments of the Universe. They play an integral part in the paradigms of stellar populations, stellar archaeology, and near-field cosmology. We review the carbon-rich and carbon-normal sub-populations of the most iron-poor stars, providing insight into chemical enrichment at the earliest times in the Universe. We also discuss the role of very metal-poor stars in providing insight into the Galaxy’s halo, thick disk, and bulge, and the promise they hold for the future. A comparison between the abundances obtained for the nine most Fe-poor stars ([Fe/H] < –4.5) (all but one of which is C-rich) with abundances obtained from far-field cosmology suggests that the former are the most chemically primitive objects yet observed and probably older than the DLA- and sub-DLA systems for which data are currently available from far-field studies.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

Aoki, W., Beers, T. C., Christlieb, N., et al. 2007, ApJ, 655, 492CrossRefGoogle Scholar
Aoki, W., Frebel, A., Christlieb, N., et al. 2006, ApJ, 639, 897CrossRefGoogle Scholar
Becker, G. D., Sargent, W. L. W., Rauch, M., et al. 2012, ApJ, 744, 91CrossRefGoogle Scholar
Beers, T. C., Carollo, D., Ivezić, Ž., et al. 2012, ApJ, 746, 34CrossRefGoogle Scholar
Beers, T. C. & Christlieb, N., 2005, ARA&A, 43, 531CrossRefGoogle Scholar
Beers, T. C., Norris, J. E., Placco, V. M., et al. 2014, ApJ, 794, 58CrossRefGoogle Scholar
Beers, T. C., Placco, V. M., Carollo, D., et al. 2017, ApJ, 835, 81CrossRefGoogle Scholar
Beers, T. C., Preston, G. W., & Shectman, S. A., 1992, AJ, 103, 1987CrossRefGoogle Scholar
Bessell, M. S. & Norris, J., 1984, ApJ, 285, 622CrossRefGoogle Scholar
Bidelman, W. P. & MacConnell, D. J., 1973, AJ, 78, 687CrossRefGoogle Scholar
Bonifacio, P., Caffau, E., Spite, M., et al. 2015, A&A, 579, A28Google Scholar
Bromm, V. & Loeb, A., 2003, Nature, 425, 812CrossRefGoogle Scholar
Caffau, E., Bonifacio, P., François, P., et al. 2012, A&A, 542, A51Google Scholar
Carney, B. W., Laird, J. B., Latham, D. W., et al. 1996, AJ, 112, 668CrossRefGoogle Scholar
Carollo, D., Beers, T. C., Lee, Y. S., et al. 2007, Nature, 450, 1020CrossRefGoogle Scholar
Chamberlain, J. W. & Aller, L. H., 1951, ApJ, 114, 52CrossRefGoogle Scholar
Christlieb, N., Gustafsson, B., Korn, A. J., et al. 2004, ApJ, 603, 708CrossRefGoogle Scholar
Christlieb, N., Schörck, T., Frebel, A., et al. 2008, A&A, 484, 721Google Scholar
Cooke, R. J. & Madau, P., 2014, ApJ, 791, 116CrossRefGoogle Scholar
Cooke, R., Pettini, M., & Murphy, M. T., 2012, MNRAS, 425, 347CrossRefGoogle Scholar
Cooke, R., Pettini, M., Steidel, C. C., et al. 2011, MNRAS, 417, 1534CrossRefGoogle Scholar
Fernández-Alvar, E., Carigi, L., & Allende Prieto, C., 2017, MNRAS, 465, 1586CrossRefGoogle Scholar
Frebel, A., Aoki, W., Christlieb, N., et al. 2005, Nature, 434, 871CrossRefGoogle Scholar
Frebel, A., Chiti, A., Ji, A. P., et al. 2015, ApJL, 810, L27CrossRefGoogle Scholar
Frebel, A., Johnson, J. L., & Bromm, V., 2007, MNRAS, 380, L40CrossRefGoogle Scholar
Frebel, A. & Norris, J. E. 2013, In Planets, Stars and Stellar Systems. Volume 5: Galactic Structure and Stellar Populations, ed. T.D.Oswalt, G.Gilmore, 55Google Scholar
Frebel, A. & Norris, J. E., 2015, ARA&A, 53, 631CrossRefGoogle Scholar
Frebel, A., Simon, J. D., Kirby, E. N., 2014, ApJ, 786, 74CrossRefGoogle Scholar
Fryer, C. L., Woosley, S. E., & Heger, A., 2001, ApJ, 550, 372CrossRefGoogle Scholar
Hansen, T., Hansen, C. J., Christlieb, N., et al. 2014, ApJ, 787, 162CrossRefGoogle Scholar
Heger, A. & Woosley, S. E., 2010, ApJ, 724, 341CrossRefGoogle Scholar
Helmi, A., Veljanoski, J., Breddels, M. A., et al. 2017, A&A, 598, A58Google Scholar
Howes, L. M. 2016, PhD Thesis, The Australian National UniversityGoogle Scholar
Jacobson, H. R., Keller, S., Frebel, A., et al. 2015, ApJ, 807, 171CrossRefGoogle Scholar
Keller, S. C., Bessell, M. S., Frebel, A., et al. 2014, Nature, 506, 463CrossRefGoogle Scholar
Keller, S. C., Schmidt, B. P., Bessell, M. S., et al. 2007, PASA, 24, 1CrossRefGoogle Scholar
Limongi, M., Chieffi, A., & Bonifacio, P., 2003, ApJL, 594, L123CrossRefGoogle Scholar
Meynet, G., Ekström, S., & Maeder, A., 2006, A&A, 447, 623Google Scholar
Meynet, G., Hirschi, R., Ekström, S., et al. 2010, A&A, 521, A30Google Scholar
Morrison, H. L., Flynn, C., & Freeman, K. C., 1990, AJ, 100, 1191CrossRefGoogle Scholar
Norris, J., Bessell, M. S., & Pickles, A. J., 1985, ApJS, 58, 463CrossRefGoogle Scholar
Norris, J. E., Christlieb, N., Korn, A. J., et al. 2007, ApJ, 670, 774CrossRefGoogle Scholar
Norris, J. E., Yong, D., Bessell, M. S., et al. 2013, ApJ, 762, 28CrossRefGoogle Scholar
Ruchti, G. R., Fulbright, J. P., Wyse, R. F. G., et al. 2010, ApJL, 721, L92CrossRefGoogle Scholar
Ryan, S. G. & Lambert, D. L., 1995, AJ, 109, 2068CrossRefGoogle Scholar
Ryan, S. G. & Norris, J. E., 1991, AJ, 101, 1835CrossRefGoogle Scholar
Schönrich, R., Asplund, M., & Casagrande, L., 2011, MNRAS, 415, 3807CrossRefGoogle Scholar
Starkenburg, E., Martin, N., Youakim, K., et al. 2017, MNRAS, 471, 2587CrossRefGoogle Scholar
Starkenburg, E., Shetrone, M. D., McConnachie, A. W., et al. 2014, MNRAS, 441, 1217CrossRefGoogle Scholar
Suda, T., Aikawa, M., Machida, M. N., et al. 2004, ApJ, 611, 476CrossRefGoogle Scholar
Umeda, H. & Nomoto, K., 2003, Nature, 422, 871CrossRefGoogle Scholar
Yoon, J., Beers, T. C., Placco, V. M, et al. 2016, ApJ, 833, 20CrossRefGoogle Scholar

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