A multi-chord stellar occultation by the large trans-Neptunian object (174567) Varda

  title={A multi-chord stellar occultation by the large trans-Neptunian object (174567) Varda},
  author={D Souami and Felipe Braga-Ribas and Bruno Sicardy and Bruno E. Morgado and Jos{\'e} Luis Ortiz and Josselin Desmars and J. I. B. Camargo and Fr{\'e}d{\'e}ric Vachier and J{\'e}r{\^o}me Berthier and Beno{\^i}t Carry and Christopher J. Anderson and R. Showers and Kevin Thomason and Paul D. Maley and William Thomas and Marc W. Buie and Rodrigo Leiva and John M. Keller and Roberto Vieira-Martins and Marcelo Assafin and Pablo Santos-Sanz and Nicol{\'a}s Morales and Ren{\'e} Duffard and Gustavo Benedetti-Rossi and A. R. Gomes-J'unior and R. C. Boufleur and C. L. Pereira and Gisl{\^a}ine Margoti and Hristo Pavlov and Tony George and D. A. Oesper and Jerry Bardecker and Robert W. Dunford and Matthew Kehrli and C. Spencer and Juan M. Cota and M. Garcia and Charisma Lara and Keitha McCandless and Edgar R. Self and J. J. Lecacheux and E. Frappa and David W. Dunham and Marcelo Emilio},
  journal={Astronomy and Astrophysics},
We present results from the first recorded stellar occultation by the large trans-Neptunian object (174567) Varda that was observed on September 10$^{\rm th}$, 2018. Varda belongs to the high-inclination dynamically excited population, and has a satellite, Ilmare, which is half the size of Varda. We determine the size and albedo of Varda and constrain its 3D shape and density. Thirteen different sites in the USA monitored the event, five of which detected an occultation by the main body. A best… 

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