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Table 5
Derived properties for the two LISs.
| Property | Arc N | Arc S | ||||||
|---|---|---|---|---|---|---|---|---|
| c(Hβ) | 0.56 ± 0.23 | 0.52 ± 0.06 | ||||||
| vλ6584 (km s−1) | − 0.2 ± 0.6 | − 9.7 ± 0.2 | ||||||
| Ne([S II]) (cm−3) | ≲100 | ≲100 | ||||||
| Te([N II]) (K) | 14 700 ± 400 | 12 500 ± 100 | ||||||
| τ(λ3889) (ω = 3) | … | 3.1 ± 1.0 | ||||||
| He+/H+ (λ5876) | … | 0.29 ± 0.01 | ||||||
| He+/H+ (λ6678) | … | 0.29 ± 0.01 | ||||||
| 105 × O++/H+ (λ5007) | 12.70 ± 1.24 | 2.79 ± 0.10 | ||||||
| 105 × O+/H+ (λ7320) | 16.05 ± 3.46 | 20.99 ± 1.50 | ||||||
| 105 × O+/H+ (λ7331) | 13.49 ± 3.29 | 19.96 ± 1.48 | ||||||
| 105 × O0/H+ (λ6300) | 15.01 ± 1.71 | 23.20 ± 0.93 | ||||||
| 105 × O/H+ | 42.48 ± 5.52 | 46.47 ± 2.17 | ||||||
| 106 × S++/H+ (λ9069) | 2.60 ± 0.44 | 1.72 ± 0.10 | ||||||
| 106 × S+/H+ (λ6717) | 1.25 ± 0.11 | 2.72 ± 0.08 | ||||||
| 106 × S+/H+ (λ6731) | 1.16 ± 0.12 | 2.71 ± 0.08 | ||||||
| 106 × Ar++/H+ (λ7136) | 2.01 ± 0.18 | 1.44 ± 0.04 | ||||||
| log ([O III] λ5007/Hα) | + 0.60 | − 0.26 | ||||||
| log ([N II] λ6584/Hα) | + 0.81 | + 0.61 | ||||||
| log ([S II] λλ6716,6731/Hα) | − 0.40 | − 0.20 | ||||||
| log ([O I] λ6300/Hα) | + 0.00 | − 0.04 |
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