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Fig. 5

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PAH lifetime (in years) as a function of the number of carbon atoms, NC, in the particle for a gas phase proton density nH = 1 cm-3 and for temperatures of 105 (solid line), 106 (dotted line), 107 (dashed line) and 108 K (dash-dot line). The fit (see text for details) for the case T = 107 K is shown in gray solid line. We can compare our fit to previous estimates (Draine & Salpeter 1979; Jones 2004), which are shown in red dashed line (see text for details).

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