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Table 5

χ2 values for the two star-forming regions.

H ii region Central region Southern region
burst continuous burst

Individual χ2 values:
[O iii]  88 μm 0.01 0.03 0.01
[N ii] 122 μm 12.58 44.63 82.56
[S iii] 18.7 μm 2.24 2.38 37.69
[S iii] 33.5 μm 8.10 6.99 31.89
[S iv] 10.5 μm 0.76 0.70 4.94
[Ne ii] 12.8 μm 14 442.2 13 842.6 58 101.7
[Ne iii] 15.6 μm 8.14 24.65 224.51

(all ionic lines) 2067.72 1988.85 8354.76
(optimized lines) 3.85 6.95 59.81

PDR Central region Southern region
burst continuous burst

Individual χ2 values:
[C ii] 157 μm 1.57 31.83 258.63
[O i] 63 μm 149.78 57.05 85.37
[O i] 145 μm 34.14 11.83 21.27

(all PDR lines) 61.83 33.57 121.76

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