“TNOs are Cool”: a survey of the trans-Neptunian region - VII. Size and surface characteristics of (90377) Sedna and 2010 EK139

  title={“TNOs are Cool”: a survey of the trans-Neptunian region - VII. Size and surface characteristics of (90377) Sedna and 2010 EK139},
  author={A. P{\'a}l and C. Kiss and T. Muller and P. Santos-Sanz and E. Vilenius and N. Szalai and Michael Mommert and E. Lellouch and M. Rengel and P. Hartogh and S. Protopapa and J. Stansberry and J. Ortiz and R. Duffard and A. Thirouin and F{\'e}lix Henry and Audrey Delsanti Konkoly Observatory and Mta Research Centre for Astronomy and E. Sciences and Department of Physics Astronomy and Lor'and Eotvos University and Max-Planck-Institut fur extraterrestrische Physik and L. D. Paris and Cnrs and Deutsches Zentrum fur Luft- und Raumfahrt and Institut fur Planetenforschung and Max-Planck-Institut fur Sonnensystemforschung and U. Maryland and S. Observatory and U. Arizona and I. D. A. D. Andaluc'ia and Laboratoire d'Astrophysique de Marseille and Universit'e de Provence},
  journal={Astronomy and Astrophysics},
  • A. Pál, C. Kiss, +30 authors Universit'e de Provence
  • Published 2012
  • Physics
  • Astronomy and Astrophysics
  • We present estimates of the basic physical properties (size and albedo) of (90377) Sedna, a prominent member of the detached trans-Neptunian object population and the recently discovered scattered disk object 2010 EK139, based on the recent observations acquired with the Herschel Space Observatory, within the “TNOs are Cool!” key programme. Our modeling of the thermal measurements shows that both objects have larger albedos and smaller sizes than the previous expectations, thus their surfaces… CONTINUE READING
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