Evidence for the effects of space weathering spectral signatures on low albedo asteroids

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Table 2

Averages of spectral parameters for Ch/Cgh asteroids and CM meteorites.

		Spectral slopes (μm^-1)			0.7 μm band
	Albedo (%)	Vis	NIR1 ^*	NIR2 ^*	Center ( μm)	Depth (%)
		0.44–0.70 μm	1.10–1.45 μm	1.6–2.3 μm	Center ( μm)	Depth (%)

Asteroids	6 ± 2	0.13 ± 0.22	0.19 ± 0.09	0.05 ± 0.04	0.71 ± 0.04	3 ± 1
Meteorites	5 ± 1	0.55 ± 0.33	0.39 ± 0.19	0.13 ± 0.11	0.72 ± 0.01	4 ± 1
Altered meteorites	4 ± 2	0.73 ± 0.47	0.25 ± 0.14	0.17 ± 0.15	0.68 ± 0.20	2 ± 1

Notes.For each spectral parameter, we present the mean value and the associated standard deviation for the asteroids, the meteorites, and the altered meteorites, respectively.

^(*)

Recall that the NIR slopes were measured only for asteroids that have available data in this wavelength range. Calculations are presented for 43 asteroids (19 with NIR data), 44 meteorites and 36 laboratory altered meteorites.

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