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Evidence of Yarkovsky and YORP Migration from the Distribution of Hungaria Family Members

Publication at Faculty of Mathematics and Physics |
2008

Abstract

The Hungaria orbital space is defined by high-inclination, low eccentricity orbits with a semi-major axis (a) of 1.78 [.lt.] a [.lt.] 2.0. Using classifications mostly from SDSS colors, we examined the absolute magnitude (H) versus a distribution of S and E(X) type asteroids in this region and found that the S-type distribution is random while the E(X)-type distribution shows a 'V' shape distribution, with broader range of a at smaller size (larger H), which is indicative of a collisional family evolved by Yarkovsky spreading.