The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation

  title={The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation},
  author={J. Ortiz and P. Santos-Sanz and B. Sicardy and G. Benedetti-Rossi and D. B{\'e}rard and N. Morales and R. Duffard and F. Braga-Ribas and U. Hopp and C. Ries and V. Nascimbeni and F. Marzari and V. Granata and A. P'al and C. Kiss and T. Pribulla and R. Kom{\vz}{\'i}k and K. Hornoch and P. Pravec and P. Bacci and M. Maestripieri and L. Nerli and L. Mazzei and M. Bachini and F. Martinelli and G. Succi and F. Ciabattari and H. Miku{\vz} and A. Carbognani and B. G{\"a}hrken and S. Mottola and S. Hellmich and F. L. Rommel and E. Fern'andez-Valenzuela and A. C. Bagatin and S. Cikota and A. Cikota and J. Lecacheux and R. Vieira-Martins and J. Camargo and M. Assafin and F. Colas and R. Behrend and J. Desmars and E. Meza and A. Alvarez-candal and W. Beisker and A. R. Gomes-J'unior and B. Morgado and F. Roques and F. Vachier and J. Berthier and T. M{\"u}ller and J. M. Madiedo and O. Unsalan and E. Sonbaş and N. Karaman and O. Erece and D. Koseoğlu and T. Ozisik and S. Kalkan and Y. Guney and M. S. Niaei and O. Satir and C. Yesilyaprak and C. Puskullu and A. Kabaş and O. Demircan and J. Alikakos and V. Charmandaris and G. Leto and J. Ohlert and J. Christille and R. Szak'ats and A. Farkas and E. Varga-Vereb{\'e}lyi and G. Marton and A. Marciniak and P. Bartczak and T. Santana-Ros and M. butkiewicz-bąk and G. Dudziński and V. Al'i-Lagoa and K. Gazeas and L. Tzouganatos and N. Paschalis and V. Tsamis and A. S{\'a}nchez-Lavega and S. P{\'e}rez-Hoyos and R. Hueso and J. Guirado and V. Peris and R. Iglesias-Marzoa},
  • J. Ortiz, P. Santos-Sanz, +90 authors R. Iglesias-Marzoa
  • Published 2017
  • Physics, Medicine
  • Nature
  • Haumea—one of the four known trans-Neptunian dwarf planets—is a very elongated and rapidly rotating body. In contrast to other dwarf planets, its size, shape, albedo and density are not well constrained. The Centaur Chariklo was the first body other than a giant planet known to have a ring system, and the Centaur Chiron was later found to possess something similar to Chariklo’s rings. Here we report observations from multiple Earth-based observatories of Haumea passing in front of a distant… CONTINUE READING
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