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Inefficient star formation in extremely metal poor galaxies

Author

Listed:
  • Yong Shi

    (School of Astronomy and Space Science, Nanjing University
    Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education)

  • Lee Armus

    (Infrared Processing and Analysis Center, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • George Helou

    (Infrared Processing and Analysis Center, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • Sabrina Stierwalt

    (University of Virginia, PO Box 400325, Charlottesville, Virginia 22904, USA)

  • Yu Gao

    (Purple Mountain Observatory, Chinese Academy of Sciences, 2 West Beijing Road, Nanjing 210008, China
    Key Laboratory for Radio Astronomy, Chinese Academy of Sciences)

  • Junzhi Wang

    (Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China)

  • Zhi-Yu Zhang

    (Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK)

  • Qiusheng Gu

    (School of Astronomy and Space Science, Nanjing University
    Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education)

Abstract

Spatially resolved infrared observations of two galaxies with oxygen abundances below 10 per cent of the solar value show that stars formed very inefficiently in seven star-forming clumps, suggesting that star formation may have been very inefficient in the early Universe.

Suggested Citation

  • Yong Shi & Lee Armus & George Helou & Sabrina Stierwalt & Yu Gao & Junzhi Wang & Zhi-Yu Zhang & Qiusheng Gu, 2014. "Inefficient star formation in extremely metal poor galaxies," Nature, Nature, vol. 514(7522), pages 335-338, October.
    • Handle: RePEc:nat:nature:v:514:y:2014:i:7522:d:10.1038_nature13820
    DOI: 10.1038/nature13820
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