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Are Large Families in The Main Belt Homogeneous?

Published online by Cambridge University Press:  03 March 2020

Ivan G. Slyusarev
Ivan G. Slyusarev*
Affiliation:
Department of Astronomy and Space Informatics, V.N. Karazin Kharkiv National University, 61022, Kharkiv, Ukraine email: i.slyusarev@karazin.ua
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Abstract

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Using color indexes from SDSS and albedos from WISE we tested the homogeneity of 56 large Main belt families from Nesvorny list using the “color - albedo” plots. 25% of the analyzed families are non-homogeneous in terms of albedos and colors. Only two families (Flora and Vesta) contain low, moderate and high albedo asteroids, that are separated in a “color-albedo” plot. The fraction of the low albedo asteroids in bimodal families is not negligible (10-30%). Seven bimodal families may contain members from two overlapping families.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium A30: Astronomy in Focus XXX , August 2018 , pp. 21 - 22
Copyright
© International Astronomical Union 2020

References

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