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This article has an erratum: [https://doi.org/10.1051/0004-6361/201118483e]


Fig. A.1

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The number of carbon atoms in a particle, NC, as a function of the particle radius for XH = 0.17 (thin), 0.3, 0.4, 0.5 and 0.62 (thick). The dashed lines show NC for effective radii aeff = a0.8, which simulate lower effective densities for sub-nm particles, i.e., larger effective radii for a given number of carbon atoms.

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