• DOI:10.1088/0004-637X/799/2/170
Corpus ID: 5404044

AN ANCIENT EXTRASOLAR SYSTEM WITH FIVE SUB-EARTH-SIZE PLANETS

@article{Campante2015ANAE,
  title={AN ANCIENT EXTRASOLAR SYSTEM WITH FIVE SUB-EARTH-SIZE PLANETS},
  author={T. Campante and T. Barclay and J. Swift and D. Huber and V. Adibekyan and W. Cochran and C. Burke and H. Isaacson and E. Quintana and G. Davies and V. Aguirre and D. Ragozzine and R. Riddle and C. Baranec and S. Basu and W. Chaplin and J. Christensen-Dalsgaard and T. Metcalfe and T. Bedding and R. Handberg and D. Stello and J. Brewer and S. Hekker and C. Karoff and R. Kolbl and N. Law and M. Lundkvist and A. Miglio and J. Rowe and N. Santos and C. V. Laerhoven and T. Arentoft and Y. Elsworth and D. Fischer and S. Kawaler and H. Kjeldsen and M. Lund and G. W. Marcy and S. Sousa and A. Sozzetti and T. White},
  journal={The Astrophysical Journal},
  year={2015},
  volume={799},
  pages={170}
}

T. Campante, T. Barclay, +38 authors T. White

Published 2015

Physics

The Astrophysical Journal

The chemical composition of stars hosting small exoplanets (with radii less than four Earth radii) appears to be more diverse than that of gas-giant hosts, which tend to be metal-rich. This implies that small, including Earth-size, planets may have readily formed at earlier epochs in the universe's history when metals were more scarce. We report Kepler spacecraft observations of Kepler-444, a metal-poor Sun-like star from the old population of the Galactic thick disk and the host to a compact… CONTINUE READING

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