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(A) N = 10 aggregates with Df = 1.55, 1.80, and 2.25. (B) Model of N =10 aggregates in the limit of no interdigitation as described in text. (C) Measured θf as a function of Rg/a for macroscale rigid aggregates (red open circles), nanoscale soot (blue open squares), and Comet 103P/Hartley 2 (green open square) from ref. 33. Error bars represent 3σ of 6–10 individual measurements and 1σ for macroscale and nanoscale measurements, respectively.
