DPS 2001 meeting, November 2001
Session 12. Kuiper Belt and KBOs Posters
Displayed, 9:00am Tuesday - 3:00pm Saturday, Highlighted, Tuesday, November 27, 2001, 5:00-7:00pm, French Market Exhibit Hall

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[12.09] Statistics of MBOSS colors

O.R. Hainaut, A.C. Delsanti (ESO)

We compiled a database of colors of Minor Bodies in the Outer Solar System (MBOSSes), i.e. Centaurs, Scattered TNOs, Plutinos, Cubiwanos and Comets), which now contains ~ 100 objects. Various statistical tests were applied to this dataset, in order to investigate for color trends as a function of orbital or physical parameters. We present the results of this investigation, which can be highlighted as following:

-- Plutinos and Cubiwanos with small orbital energy (defined as {\cal E}= \sqrt{e2+i2}, e and i being the eccentricity and the inclination, resp.) are on average slightly redder than those with a larger energy.

-- Plutinos and Cubiwanos with faint absolute magnitude have on average broader color distributions than those with a bright absolute magnitude.

-- Blue MBOSSes has a broader absolute magnitude distribution than the redder objects.

We will discuss possible interpretations of these and other results.

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