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Physical and dynamical characteristics of icy “dwarf planets” (plutoids)

  • Gonzalo Tancredi (a1) (a2)
Abstract
Abstract

The geophysical and dynamical criteria introduced in the “Definition of a Planet in the Solar System” adopted by the International Astronomical Union are reviewed. The classification scheme approved by the IAU reflects dynamical and geophysical differences among planets, “dwarf planets” and “small Solar System bodies”. We present, in the form of a decision tree, the set of questions to be considered in order to classify an object as an icy “dwarf planet” (a plutoid). We find that there are 15 very probable plutoids; plus possibly 9 more, which require a reliable estimate of their sizes. Finally, the most relevant physical and dynamical characteristics of the set of icy “dwarf planets” have been reviewed; e.g. the albedo, the lightcurve amplitude, the location in the different dynamical populations, the size distributions, and the discovery rate.

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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

M. Barucci M. Capria , A. Harris , & M. Fulchignoni 1989, Icarus, 78, 311

R. Duffard , J. L. Ortiz , A. Thirouin , P. Santos-Sanz , & N. Morales 2009, A&A, 505, 1283

R. S. Gomes 2003, Icarus, 161, 404

R. S. Gomes 2003, Celest. Mech. Dyn. Astr., 104, 39

J. Petrovic 2003, J. Materials Science, 38, 1

S. Soter 2006, AJ, 132, 2513

S. A. Stern & H. F. Levison 2002, Highlights Astron., 12, 205

G. Tancredi & S. Favre 2008 (Paper I) Icarus, 195, 851

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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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