Icarus
We observed 21 objects in the Kilo family using the NASA InfraRed Telescope Facility (IRTF) and the Telescopio Nazionale Galileo (TNG) between January 2017 and March 2019. Our survey shows that the Klio family is spectrally homogeneous in the NIR, i.e., the heterogeneity seen in the visible does not extend to the NIR. The Klio family NIR spectra have mostly convex shapes and have red slopes (average slope 1.052 ± 0.425%/1000 Å normalized at 1.0 μm). The average spectra of both families we have studied in the NIR (Polana-Eulalia and Klio) differ slightly in spectral shape and slope, consistent with space weathering effects, but not conclusively so. Based on our NIR spectral comparisons, the Klio family cannot be ruled out as a possible source for two near-Earth asteroids: (101955) Bennu and (162173) Ryugu.
![Image of active asteroid P/2013 R3 (CATALINA-PANSTARRS) obtained with the 10.4m GTC telescope (La Palma, Spain). The nucleus of the object is splitted in at least four fragments (bright nucleus and fragments labeled A, B, and C) that remained active after the cometary-like spitting event Project Image](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/project/Imagen%20Julia.jpg?h=a20dd341&itok=Mh16lYlm)