Table 3: Summary of the radial spatial extent of the PAH feature (half-width at half-maximum).
Source 3.3 $\mu $m 8.6 $\mu $m 11.2 $\mu $m 12.7 $\mu $m
PAH detected and spatially resolved
HD 100546 0.12'' 12 AU - - - - - -
TY CrA 0.39'' 55 AU - - - - - -
WL 16 - - 0.43'' 54 AU 0.49'' 61 AU 0.46'' 58 AU
IRS 48 0.11'' 14 AU 0.25'' 31 AU 0.32'' 40 AU 0.33'' 41 AU
PAH detected but spatially unresolved
HD 98922 $\leq$0.24'' $\leq$130 AUa $\leq$0.17'' $\leq$92 AU $\leq$0.15'' $\leq$81 AU - -
HD 101412 $\leq$0.24'' $\leq$38 AU $\leq$0.16'' $\leq$26 AU $\leq$0.15'' $\leq$ 24 AU - -
Em* SR 21A $\leq$0.33'' $\leq$41 AU $\leq$0.16'' $\leq$20 AU $\leq$0.17'' $\leq$21 AU $\leq$0.15'' $\leq$19 AU
T Cha $\leq$0.34'' $\leq$22 AU - - $\leq$0.19'' $\leq$13 AU - -
EC 82 - - $\leq$0.18'' $\leq$47 AU $\leq$0.23'' $\leq$60 AU - -

a Uncertain distance to source.

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