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Table 4

Description whether the fluxes measured in the on-source spaxel and the surrounding three by three spaxels are consistent with the pure spillover factor (0.70 at 79  μm, 0.69 at 84  μm, 0.62 at 119  μm, and 0.49 at 163  μm).

Source 79  μm 84  μm 119  μm 163  μm Spatially extended

NGC 1333 IRAS 2A no (abs.)
NGC 1333 IRAS 4A no no yes
NGC 1333 IRAS 4B no no no no yes
L 1527 no yes yes yes (no)
Ced110 IRS4 yes (yes) yes yes no
IRAS 15398/B228 no no no no yes
L 483 mm (no) yes yes (no)
Ser SMM1 no no no no yes
Ser SMM3 no no yes
L 723 mm yes yes no

L 1489 yes yes yes yes no
TMR 1 no no no yes (mispointed)
TMC 1A no yes yes (no)
TMC 1 no no yes (yes)
HH 46 no yes no no
DK Cha no (yes)
RNO 91 yes no

AFGL 490 no (abs.) no (abs.) no (abs.) no yes
NGC 2071 no no no (abs./em.) no yes
NGC 7129 FIRS 2 no yes no yes
Vela IRS 17 no no no (abs./em.) no yes
Vela IRS 19 no no no (abs./em.) no yes
L1641 S3MMS1 no yes no yes yes

Notes. If the fraction of flux measured in the on-source spaxel compared to the three by three central spaxels is smaller than the spillover value, it is an indication that the OH line is spatially extended, as summarized in the last column.

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