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A spin-down clock for cool stars from observations of a 2.5-billion-year-old cluster

Author

Listed:
  • Søren Meibom

    (Harvard-Smithsonian Center for Astrophysics)

  • Sydney A. Barnes

    (Leibniz Institute for Astrophysics, An der Sternwarte 16, 14482 Potsdam, Germany
    Space Science Institute, 4750 Walnut Street #205)

  • Imants Platais

    (Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, USA)

  • Ronald L. Gilliland

    (Center for Exoplanets and Habitable Worlds, The Pennsylvania State University, University Park)

  • David W. Latham

    (Harvard-Smithsonian Center for Astrophysics)

  • Robert D. Mathieu

    (University of Wisconsin-Madison)

Abstract

The measurement of the rotational periods of 30 cool stars in the 2.5-billion-year-old cluster NGC 6819 allows the calibration of gyrochronology — the determination of a star’s age on the basis of its rotation period — over a much broader age range than hitherto, meaning that it might be possible to determine the ages of many cool stars in the Galactic field with a precision of roughly 10 per cent.

Suggested Citation

  • Søren Meibom & Sydney A. Barnes & Imants Platais & Ronald L. Gilliland & David W. Latham & Robert D. Mathieu, 2015. "A spin-down clock for cool stars from observations of a 2.5-billion-year-old cluster," Nature, Nature, vol. 517(7536), pages 589-591, January.
    • Handle: RePEc:nat:nature:v:517:y:2015:i:7536:d:10.1038_nature14118
    DOI: 10.1038/nature14118
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