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Table B.1

Spitzer/IRS low-resolution measurements.

Method Regular Optimal Regular Optimal Optimal customa Regular Optimal

SL 9008640 9008640 16205568 16205568 16205568 12622848 12622848
(Ap.) (Ap., meth.) (Pref.) (Meth.) (Pref.) (Ap.) (Ap., meth.)

H i Huα12.37μm < 7 < 5 8.2 ± 2.5 4.1 ± 1.5 2.6 ± 2.0,5.5 ± 1.8 7.0 ± 3.5 6.5 ± 3.3
[Ne ii] 12.8 μm < 9 < 6 < 2 4.1 ± 1.7 3.0 ± 1.6,5.2 ± 2.6 8.5 ± 3.5 6.0 ± 3.1
[S iv] 10.5 μm < 10 < 6 40 ± 3 19 ± 2 14 ± 2,34 ± 2 39 ± 4 29 ± 3
[Ar ii] 7.0 μm ... ... < 5 < 3 ... < 5 < 3
[Ar iii] 9.0 μm < 5 < 7 < 8 < 3 < 10 < 15 < 3

LL 9008640 9008640 16205568 16205568 16205568 12622848 12622848
(Pref.) (Pref., meth.) (Pref.) (Pref., meth.) (Pref.) (Pref.) (Pref., meth.)

[O iv]+[Fe ii] 66 ± 19 52 ± 12 53 ± 22 43 ± 11 53 ± 11 79 ± 20 60 ± 15
[Ne iii] 15.5 μm 71 ± 13 66 ± 17 83 ± 8 65 ± 8 76 ± 10 104 ± 41 ∗ 59 ± 13
[Ne iii] 36.0 μm ... < 14 < 11 < 51 46 ± 24 ∗ 135 ± 70 ∗ 60 ± 24 ∗
[Ne v] 14.3 μm < 14 < 21 < 7 < 8 < 8 < 21 < 19
[Ne v] 24.3 μm < 23 < 14 < 10 < 8 < 9 < 18 < 13
[S iii] 18.7 μm 39 ± 17 46 ± 15 43 ± 6 40 ± 6 47 ± 8 42 ± 17 56 ± 16
[S iii] 33.5 μm < 45 65 ± 16 60 ± 10 45 ± 13 48 ± 12 91 ± 30 57 ± 11
[Ar iii] 21.8 μm < 29 < 21 < 13 < 10 < 13 < 23 < 17
[Fe iii] 23.0 μm < 28 < 19 < 12 < 10 < 12 < 21 < 15
[Si ii] 34.8 μm < 75 96 ± 30 96 ± 14 50 ± 11 65 ± 12 130 ± 63 115 ± 24
[Fe ii] 17.9 μm < 27 < 24 < 11 < 9 < 11 < 20 < 15
H2 S(0) 28.2 μm < 17 < 14 < 10 < 7 < 7 < 14 < 11
H2 S(1) 17.0 μm < 17 < 24 < 10 < 9 < 9 < 21 < 17

Notes. Fluxes are in units of 10-19 W m-2. Upper limits are 1σ. The line below the AORkey indicates whether the total emission from NW+SE is underestimated due to aperture mispointing (“Ap.”) or underestimated because the optimal extraction method is adapted to point sources (“Meth.”). The preferred determination is indicated with “Pref.”. Line fluxes followed by asterisks are deemed unreliable due to the presence of spurious features. Ellipses indicate that the line flux cannot be determined (because of numerous spurious features).

(a)

NW and SE are extracted simultaneously in SL, with their spatial extent accounted for. In LL, a single slightly extended source is used.

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