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Images of a fourth planet orbiting HR 8799

Author

Listed:
  • Christian Marois

    (National Research Council Canada, Herzberg Institute of Astrophysics)

  • B. Zuckerman

    (University of California)

  • Quinn M. Konopacky

    (Lawrence Livermore National Laboratory)

  • Bruce Macintosh

    (Lawrence Livermore National Laboratory)

  • Travis Barman

    (Lowell Observatory)

Abstract

Exoplanets: then there were four A fourth planet has been discovered orbiting the nearby star HR 8799. Three giant planets had been imaged directly in the near-infrared — thanks to their wide orbits and brightness. The fourth is interior to and about the same mass as the other three. The system, with this additional planet, represents a challenge for current planet formation models, as none of them can explain the in situ formation of all four planets.

Suggested Citation

  • Christian Marois & B. Zuckerman & Quinn M. Konopacky & Bruce Macintosh & Travis Barman, 2010. "Images of a fourth planet orbiting HR 8799," Nature, Nature, vol. 468(7327), pages 1080-1083, December.
    • Handle: RePEc:nat:nature:v:468:y:2010:i:7327:d:10.1038_nature09684
    DOI: 10.1038/nature09684
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    Cited by:

    1. Ken Rice, 2014. "The Detection and Characterization of Extrasolar Planets," Challenges, MDPI, vol. 5(2), pages 1-28, September.

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