A Statistical Analysis on the Color and Orbit Parameters of Centaurs

Details A Statistical Analysis on the Color and Orbit Parameters of Centaurs A Statistical Analysis on the Color and Orbit Parameters of Centaurs

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011cha%26a..35..177l&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 35, Issue 2, p. 177-187.

Astronomy and Astrophysics

Astrophysics

Scientific paper

In order to study the statistical characters and physical significance of the color indexes and orbital parameters of Centaurs, we have analyzed the color and orbit parameter correlations by using statistical methods according to the known color indexes of 39 Centaurs and their respective orbital parameters. We find that all the correlations of B - V vs. V - R, V - R vs. R - I, B - V vs. R - I and B - R vs. R - I are strong. The Centaurs exhibit obvious redblue double-color property, and the point of demarcation is close to B - R = 1.4. The distributions of the various color indexes of Centaurs exhibit the normal distribution. For the correlations between colors and orbital parameters, except for the weak correlations between B - V and the orbital inclination i as well as between V - R and the orbital semi-major axis a, no evident correlation has been found between color indexes and orbital parameters.

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