Fig. 1

Combined X-shooter reflectance spectrum of P/2012 T1. The UVB and VIS spectra have been binned into intervals of 10 Å and the NIR spectrum has been binned into intervals of 60 Å to increase the signal-to-noise. The two spectral regions, centred at 1.4 and 1.9 μm, that are heavily contaminated by the telluric absorptions have been cut out.
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