Color Variability of Asteroids in SDSS Moving Object Catalog

  title={Color Variability of Asteroids in SDSS Moving Object Catalog},
  author={Gyula M. Szab{\'o} and Želko Ivezi{\'c} and Mario Juri{\'c} and Robert H. Lupton and L{\'a}szl{\'o} L. Kiss},
  journal={Monthly Notices of the Royal Astronomical Society},
We report a detection of statistically significant color variations for a sample of 7,531 multiply observed asteroids that are listed in the Sloan Digital Sky Survey Moving Object Catalog. Using 5-band photometric observations accurate to ∼ 0.02 mag, we detect color variations in the range 0.06-0.11 mag (rms). These variations appear un-correlated with asteroids physical characteristics such as diameter (in the probed 1-10 km range), taxonomic class, and family membership. Despite such a lack of… 
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