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Fig. 3


Expected thermal lightcurves of the comet 8P/Tuttle at 1.25 mm for different values of the nucleus thermal inertia between 0 (in red) and 300 MKS (in blue). The beaming factor is η = 0.7 and the emissivity ϵ = 0.95. The geometrical configuration is that of the observations of 8P/Tuttle on 08 January 2008 (rh = 1.07 AU, Δ = 0.28 AU, phase angle φ = 65°).

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