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Table 5

Continuum subtracted 8.6 and 11.3  μm PAH band fluxes in units of 10-21 W cm-2.

Source 8.6 PAH 11.3 PAH Aperture

M1  ~0 18a 07
M2  ~0 07
M7 61 07
ΣMi  ~60 07
Ring 1130 3′′–8′′

TIMMI2 330 3′′
ISOPHOT 1740 1620 24′′
IRS/Spitzer 2570 27′′  ×  43′′

Notes. 

(a)

Measurement obtained from the VISIR spectrum of M1.

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