Fig. 3
VLT/ISAAC spectra of M 1−20 and Tc 1, in comparison with the laboratory spectra of the fulleranes C60H18, C70H38, and C60Hx+C70Hy in the 3.1−3.8 μm range. Note that the C60H18 fullerane bands at 3.42, 3.46, and 3.51 μm and the C70H38 fullerane bands at 3.44 and 3.54 μm are marked with dashed lines. The C60Hx+C70Hy fullerane bands are those at 3.44, 3.51, and 3.54 μm.
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