Fig. 11
Ejection velocities of 1 cm particles versus the heliocentric distance for all comets in the sample plus the result obtained by Fulle et al. (2010) in the study of comet 67P/Churyumov-Gerasimenko. The complete set of comets are: 22P/Kopff, 30P/Reinmuth 1, 67P/Churyumov-Gerasimenko, 78P/Gehrels 2, 81P/Wild 2, 103P/Hartley 2 (Model I and Model II), 115P/Maury, 118P/Shoemaker-Levy 4, 123P/West-Hartley, 157P/Tritton, 185P/Petriew, and P/2011 W2 (Rinner). The color code is given in the legend. The solid black line is the best fit found for that distribution: 
, with A = 7.067 mB+1/s and B = 1.998.
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