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Table 4

Prior measurements of PDR cooling lines in S 106.

Line Wavelength Herschel brightness Herschel beam Prior measurement Beam Instrument
[μm] [10-5 erg s-1 cm-2 sr-1] [10-8 sr] [10-5 erg s-1 cm-2 sr-1] [10-8 sr]

van den Ancker et al. (2000 )
[O i] 63 2987 ± 7 3.41 690 16.3a ISO-LWS
[O i] 63 2987 ± 7 3.41 3300 3.41b ISO-LWS
[O i] 146 447.9 ± 1.7 3.41 327 8.8a ISO-LWS
[C ii] 158 391.1 ± 2.0 3.41 135 11.6a ISO-LWS
Schneider et al. (2003 )
[O i] 63 2987 ± 7 3.41 639 ± 7 12.4 ISO-LWS
[O i] 63 2987 ± 7 3.41 2100 1.3 KAO-FIFI
[O i] 146 447.9 ± 1.7 3.41 74 ± 3 9.0 ISO-LWS
[C ii] 158 391.1 ± 2.0 3.41 80 8.6 KAO-FIFI
[C ii] 158 391.1 ± 2.0 3.41 107 ± 3 8.5 ISO-LWS
[C i] 609 0.86 ± 0.14 3.41 0.217 7.1 KOSMA
[C i] 370 2.72 ± 0.27 3.41 2.64 7.1 KOSMA

Notes.

(a)

Schneider et al. (2003) quote smaller values for the area of the LWS beam at the same wavelengths than van den Ancker et al. (2000), which is likely due to the ISO-LWS beam profiles being significantly different in practice than expected, leading to changes to the quoted beam sizes in the LWS documentation over time. For example see the discussion presented by Liseau et al. (2006, Sect. 3.1). As such, the values presented by Schneider et al. (2003) are likely to be closer to the true LWS beam sizes.

(b)

Recalculated assuming the source flux to be entirely concentrated in the Herschel beam (see text).

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