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This article has an erratum: [https://doi.org/10.1051/0004-6361/201016340e]


Table 1

The numerical result of the fit using the PAH Database to fit the component spectra extracted using the BSS method.

Database BSS components

Percentage PAH+ PAH0 VSG
Large PAHs 43 48 15
Small PAHs 57 52 85
PAH cations 78 15 34
PAH neutrals 16 80 21
PAH anions 6 5 45

Notes. The percentage amounts of large (C ≥ 50), small (C < 50), cation, neutral, and anion species are displayed for the PAH+, PAH0, and VSG component signals.

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