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Fig. 12

image

as a function of phase angle for comets 67P, 74P, and 152P. The solid black line is a best fit of previously observed comets. Data points shown are 1P/Halley, C/1995 O1 Hale-Bopp, and other Jupiter family comets, which include 22P/Kopff, 49P/Ashbrook-Jackson, observations of 67P/Churyumov-Gerasimenko from 1984, and 81P/Wild 2. These data points can all be found in the comet polarimetric database (Kiselev et al. 2006).

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