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Table 2

Comparison of spectral parameters: spectral slope in the visible, , in % (100   nm)-1, and percentile depth of the absorption feature, Dλ at a given wavelength λ.

Band (nm) a (%) b (%) c (%) d (%) e (%) f (%) g (%) h (%)

3.8 ± 1.1 (...) 3.4 ± 0.5 2.9 ± 0.6 (...) (...) (...) 12.5 ± 1.2

620 5.3 ± 1.0 (...) 3.9 ± 3.7 4.7 ± 1.0 (...) (...) (...) Undet.
730 15.8 ± 1.8 15.0 ± 4.6 15.7 ± 5.2 15.1 ± 2.0 (...) (...) (...) 5.6 ± 1.1
790 9.7 ± 0.7 8.1 ± 3.6 8.8 ± 3.3 7.2 ± 0.8 (...) (...) (...) Undet.
840 5.9 ± 1.4 Undet. 8.2 ± 5.4 5.4 ± 1.1 (...) (...) (...) 2.7 ± 0.9
870 13.2 ± 1.8 15.1 ± 1.4 19.0 ± 7.5 14.1 ± 1.1 (...) (...) (...) 3.8 ± 3.3
890 46.3 ± 1.4 35.1 ± 7.6 55.9 ± 8.8 41.8 ± 3.9 (...) (...) (...) 16.2 ± 1.1
1000 20.2 ± 8.3 (...) (...) (...) (...) (...) (...) (...)
1015 31.2 ± 4.3 (...) (...) (...) (...) (...) (...) (...)
1135 39.3 ± 2.1 (...) (...) (...) (...) (...) (...) (...)
1160 54.5 ± 5.0 (...) (...) (...) (...) (...) (...) (...)
1190 34.4 ± 2.0 (...) (...) (...) (...) (...) (...) (...)
1240 9.0 ± 0.9 (...) (...) (...) (...) (...) (...) (...)
1335 72.2 ± 2.6 (...) (...) (...) (...) (...) (...) (...)
1485 (...) (...) (...) (...) 18.9 ± 5.8 32.1 ± 1.7 31.1 ± 0.9 12.9 ± 0.9
1670 64.4 ± 7.3 (...) (...) (...) 61.2 ± 9.5 77.7 ± 7.5 82.1 ± 8.3 59.1 ± 2.9
1690 17.4 ± 4.8 (...) (...) (...) 15.5 ± 6.1 16.3 ± 6.8 14.6 ± 2.2 5.3 ± 0.2
1720 66.2 ± 7.3 (...) (...) (...) 53.6 ± 10.9 68.3 ± 5.4 59.2 ± 3.0 50.2 ± 1.2
1800 Undet. (...) (...) (...) 66.8 ± 4.8 72.4 ± 13.7 70.3 ± 3.4 56.0 ± 0.6
2200 Undet. (...) (...) (...) 89.5 ± 29.2 81.1 ± 18.1 60.4 ± 8.4 50.7 ± 1.1

Notes. Undet. = undetermined; references: (a) this work; (b) Abernathy et al. (2009); (c) Licandro et al. (2006); (d) Alvarez-Candal et al. (2008); (e) Guilbert et al. (2009); (f) Merlin et al. (2009); (g) Dumas et al. (2007); (h) Merlin et al. (2010), Pluto.

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