DPS 35th Meeting, 1-6 September 2003
Session 39. KBO and Centaurs II
Poster, Highlighted on, Friday, September 5, 2003, 3:30-6:00pm, Sierra Ballroom I-II

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[39.06] The Meudon Multicolor Survey of Outer Solar System Objects

A. Doressoundiram, C. Doucet, N. Peixinho, M.A. Barucci (Observatoire de Paris), O. Mousis, J.-M. Petit (Observatoire de Besancon), C. Veillet (CFHT)

In recent years, broadband colors on trans-Neptunian objects (TNOs) have greatly increased the knowledge of their surface properties. With the large and high quality color available datasets, strong and significant results have been found. We present here the last B-V, V-R and R-I color measurements obtained with the CFH12K mosaic camera of the 3.6m Canada-France-Hawaii Telescope (CFHT). This work is the latest extension of the Meudon Multicolor Survey (2MS) that totalizes now a dataset of 70 Centaurs and TNOs. In previous work (Doressoundiram et al., 2002, AJ, 124, 2279-2296), we found significant correlations between optical colors and some orbital parameters (i, e, q) for the Classical Kuiper Belt. On the other hand, no clear trend was obvious for Plutinos, Scattered objects or Centaurs. In this new and larger dataset, we looked for confirmation of the correlations found and possible detection of new significant trends for populations previously under sampled (e.g. scattered disk objects). We make also some comparison with related populations (e.g. irregular satellites, cometary nuclei). This analysis will be presented and discussed.

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Bulletin of the American Astronomical Society, 35 #4
© 2003. The American Astronomical Soceity.