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Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way

Author

Listed:
  • L. M. Howes

    (Research School of Astronomy and Astrophysics, Australian National University)

  • A. R. Casey

    (Institute of Astronomy, University of Cambridge)

  • M. Asplund

    (Research School of Astronomy and Astrophysics, Australian National University)

  • S. C. Keller

    (Research School of Astronomy and Astrophysics, Australian National University)

  • D. Yong

    (Research School of Astronomy and Astrophysics, Australian National University)

  • D. M. Nataf

    (Research School of Astronomy and Astrophysics, Australian National University)

  • R. Poleski

    (Warsaw University Observatory, Aleje Ujazdowskie 4
    Ohio State University)

  • K. Lind

    (Uppsala University)

  • C. Kobayashi

    (Research School of Astronomy and Astrophysics, Australian National University
    School of Physics, Astronomy and Mathematics, Centre for Astrophysics Research, University of Hertfordshire, College Lane)

  • C. I. Owen

    (Research School of Astronomy and Astrophysics, Australian National University)

  • M. Ness

    (Max-Planck-Institut für Astronomie, Königstuhl 17)

  • M. S. Bessell

    (Research School of Astronomy and Astrophysics, Australian National University)

  • G. S. Da Costa

    (Research School of Astronomy and Astrophysics, Australian National University)

  • B. P. Schmidt

    (Research School of Astronomy and Astrophysics, Australian National University)

  • P. Tisserand

    (Research School of Astronomy and Astrophysics, Australian National University
    Sorbonne Universités, UPMC Université Paris 6 et CNRS, UMR 7095, Institut d’Astrophysique de Paris, 98 bis Boulevard Arago)

  • A. Udalski

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • M. K. Szymański

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • I. Soszyński

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • G. Pietrzyński

    (Warsaw University Observatory, Aleje Ujazdowskie 4
    Universidad de Concepción, Casilla 160-C)

  • K. Ulaczyk

    (Warsaw University Observatory, Aleje Ujazdowskie 4
    University of Warwick)

  • Ł. Wyrzykowski

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • P. Pietrukowicz

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • J. Skowron

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • S. Kozłowski

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

  • P. Mróz

    (Warsaw University Observatory, Aleje Ujazdowskie 4)

Abstract

The first stars and their immediate successors should be found today in the central regions (bulges) of galaxies; old, metal-poor stars have now been found in the Milky Way bulge, including one star with an iron abundance about 10,000 times lower than that of the Sun without noticeable carbon enhancement, making it possibly the oldest known star in the Galaxy.

Suggested Citation

  • L. M. Howes & A. R. Casey & M. Asplund & S. C. Keller & D. Yong & D. M. Nataf & R. Poleski & K. Lind & C. Kobayashi & C. I. Owen & M. Ness & M. S. Bessell & G. S. Da Costa & B. P. Schmidt & P. Tissera, 2015. "Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way," Nature, Nature, vol. 527(7579), pages 484-487, November.
    • Handle: RePEc:nat:nature:v:527:y:2015:i:7579:d:10.1038_nature15747
    DOI: 10.1038/nature15747
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