Reopening the TNOs color controversy: Centaurs bimodality and TNOs unimodality

  title={Reopening the TNOs color controversy: Centaurs bimodality and TNOs unimodality},
  author={Nuno Peixinho and Alain Doressoundiram and Audrey C. Delsanti and Hermann Boehnhardt and Maria Antonietta Barucci and I. Belskaya Lesia and Observatoire de Paris and Caaul and Observatorio Astronomico de Lisboa and Max-Planck Institut fur Astronomie and Astronomical Observatory of Vilnius University},
  journal={Astronomy and Astrophysics},
We revisit the Trans-Neptunian Objects (TNOs) color controversy allegedly solved by Tegler & Romanishin (2003). We debate the statistical approach of the quoted work and discuss why it can not draw the claimed conclusions, and reanalyze their data sample with a more adequate statistical test. We find evidence for the existence of two color groups among the Centaurs. Therefore, mixing both centaurs and TNOs populations lead to the erroneous conclusion of a global bimodality, while there is no… Expand

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