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Table 3

Line intensities corrected from foreground emission and extinction (Hβ =100), and results from the empirical analysis of the nebular spectra corresponding to the nine extracted apertures(1).

Aperture
A1 A2 A3 A4 A5 A6 A7 A8 A9
Center position (arcsec) 15.80 26.80 37.80 51.55 68.05 84.55 101.05 117.55 134.05
Size (arcsec) 11.0 11.0 11.0 16.5 16.5 16.5 16.5 16.5 16.5
λ (Å) Ion Mult. I(λ)/I(Hβ)
3726.03 [O ii] 1F 93.5  ±  1.8 99.7  ±  2.0 106  ±  2 104  ±  2 104  ±  2 108  ±  2 117  ±  2 129  ±  3 150  ±  3
3728.82 [O ii] 1F 84.2  ±  1.7 91.5  ±  1.8 98.1  ±  2.0 99.5  ±  2.0 98.9  ±  2.0 103  ±  2 114  ±  2 120  ±  2 143  ±  3
3835.39 H i H9(2) 7.50  ±  0.75 7.94  ±  0.79 8.28  ±  0.83 7.91  ±  0.79 7.83  ±  0.78 7.57  ±  0.76 7.98  ±  0.80 7.37  ±  0.74 7.42  ±  0.74
4068.60 [S ii] 1F 1.58  ±  0.32 1.80  ±  0.36 1.86  ±  0.37 2.43  ±  0.49 2.70  ±  0.54 3.30  ±  0.66 3.84  ±  0.77 4.77  ±  0.95 5.63  ±  0.56
4076.35 [S ii] 1F 0.64  ±  0.19 0.67  ±  0.20 0.76  ±  0.23 0.74  ±  0.22 0.71  ±  0.21 1.00  ±  0.30 1.16  ±  0.23 1.29  ±  0.26 1.24  ±  0.25
4101.74 H i Hδ 26.2  ±  1.3 26.2  ±  1.3 26.0  ±  1.3 25.7  ±  1.3 25.6  ±  1.3 25.6  ±  1.3 25.7  ±  1.3 25.6  ±  1.3 25.8  ±  1.3
4340.47 H i Hγ 46.2  ±  2.3 46.2  ±  2.3 46.5  ±  2.3 46.9  ±  2.3 46.9  ±  2.4 47.0  ±  2.4 46.8  ±  2.3 46.9  ±  2.4 46.8  ±  2.3
4471.09 He i 14 1.09  ±  0.22 1.35  ±  0.27 1.02  ±  0.20 0.19  ±  0.08 – – – – –
4861.33 H i Hβ 100  ±  2 100  ±  2 100  ±  2 100  ±  2 100  ±  2 100  ±  2 100  ±  2 100  ±  2 100  ±  2
4958.91 [O iii] 1F 2.52  ±  0.50 0.98  ±  0.29 0.15  ±  0.06 – – – 0.93  ±  0.28 0.88  ±  0.26 7.59  ±  0.76
5006.94 [O iii] 1F 7.86  ±  0.79 2.78  ±  0.56 0.25  ±  0.10 – 0.35  ±  0.14 0.13  ±  0.05 2.78  ±  0.56 3.06  ±  0.61 25.42  ±  1.27
6300.30 [O i] 1F 0.64  ±  0.03 0.64  ±  0.03 0.60  ±  0.03 0.86  ±  0.04 1.05  ±  0.05 1.30  ±  0.06 2.47  ±  0.12 3.50  ±  0.17 5.39  ±  0.27
6312.10 [S iii] 3F 0.80  ±  0.04 0.70  ±  0.03 0.69  ±  0.03 0.58  ±  0.03 0.47  ±  0.02 0.42  ±  0.02 0.45  ±  0.02 0.38  ±  0.02 0.36  ±  0.02
6548.03 [N ii] 1F 36.31  ±  1.82 38.4  ±  1.9 41.3  ±  2.1 41.8  ±  2.1 42.0  ±  2.1 44.2  ±  2.2 45.7  ±  2.3 50.2  ±  1.0 54.1  ±  1.1
6562.82 H i Hα 292.00  ±  5.84 292  ±  6 292  ±  6 292  ±  6 292  ±  6 292  ±  6 292  ±  6 292  ±  6 292  ±  6
6583.41 [N ii] 1F 107.12  ±  2.14 113  ±  2 122  ±  2 123  ±  2 124  ±  2 130  ±  3 135  ±  3 148  ±  3 159  ±  3
6678.15 He i 46 1.11  ±  0.06 1.13  ±  0.06 0.89  ±  0.04 0.20  ±  0.01 – – – 0.03  ±  0.01 0.26  ±  0.01
6716.47 [S ii] 2F 18.79  ±  0.94 20.2  ±  1.0 22.2  ±  1.1 25.8  ±  1.3 29.4  ±  1.5 36.9  ±  1.8 42.3  ±  2.1 49.1  ±  2.5 58.8  ±  1.2
6730.85 [S ii] 2F 20.02  ±  1.00 21.4  ±  1.1 23.0  ±  1.2 26.6  ±  1.3 30.4  ±  1.5 38.7  ±  1.9 42.8  ±  2.1 53.3  ±  1.1 60.8  ±  1.2
7065.28 He i 10 0.92  ±  0.05 0.85  ±  0.04 0.65  ±  0.03 0.15  ±  0.01 – – 0.06  ±  0.01 0.09  ±  0.01 0.34  ±  0.02
7135.78 [Ar iii] 1F 2.90  ±  0.14 2.66  ±  0.13 1.70  ±  0.08 0.31  ±  0.02 0.03  ±  0.01 0.03  ±  0.01 0.19  ±  0.01 0.24  ±  0.01 1.16  ±  0.06
7319.19 [O ii] 2F 1.74  ±  0.09 1.67  ±  0.08 1.67  ±  0.08 1.51  ±  0.08 1.52  ±  0.08 1.66  ±  0.08 1.80  ±  0.09 2.53  ±  0.13 2.67  ±  0.13
7330.20 [O ii] 2F 1.46  ±  0.07 1.41  ±  0.07 1.34  ±  0.07 1.24  ±  0.06 1.26  ±  0.06 1.39  ±  0.07 1.50  ±  0.08 2.07  ±  0.10 2.20  ±  0.11
c(Hβ) 0.60  ±  0.09 0.49  ±  0.08 0.51  ±  0.05 0.75  ±  0.06 0.76  ±  0.06 0.79  ±  0.07 0.77  ±  0.06 0.73  ±  0.06 0.99  ±  0.07
F(Hβ) 1.508  ×  10-12 1.443  ×  10-12 1.185  ×  10-12 1.861  ×  10-12 1.770  ×  10-12 1.765  ×  10-12 1.271  ×  10-12 1.150  ×  10-12 7.131  ×  10-13
ne([O ii]) 560  ±  50 520  ±  50 500  ±  40 440  ±  40 450  ±  40 450  ±  40 420  ±  40 510  ±  50 460  ±  40
ne([S ii]) 650  ±  170 630  ±  170 570  ±  160 560  ±  150 560  ±  150 600  ±  160 520  ±  150 690  ±  140 580  ±  60
Te([O ii]) 7850  ±  160 7600  ±  150 7360  ±  140 7260  ±  130 7270  ±  140 7420  ±  140 7440  ±  140 8070  ±  180 7810  ±  180
Te([O iii])(3) 7360  ±  1700 7000  ±  1650 6660  ±  1600 – – – – – –
He+/H+ 10.44  ±  0.02 10.45  ±  0.03 10.34  ±  0.03 – – – – – –
O+/H+ 8.34  ±  0.05 8.45  ±  0.05 8.55  ±  0.05 8.58  ±  0.05 8.58  ±  0.05 8.54  ±  0.05 8.57  ±  0.05 8.42  ±  0.05 8.56  ±  0.06
O2+/H+ 6.97  ±  0.20 6.64  ±  0.22 5.83  ±  0.26 – – – – – –
N+/H+ 7.63  ±  0.04 7.70  ±  0.04 7.78  ±  0.04 7.80  ±  0.04 7.80  ±  0.04 7.80  ±  0.04 7.81  ±  0.04 7.73  ±  0.04 7.81  ±  0.04
S+/H+ 6.28  ±  0.04 6.35  ±  0.04 6.43  ±  0.04 6.51  ±  0.04 6.56  ±  0.04 6.64  ±  0.04 6.68  ±  0.04 6.66  ±  0.04 6.77  ±  0.04
S2+/H+ 6.78  ±  0.04 6.80  ±  0.04 6.87  ±  0.04 6.83  ±  0.04 6.73  ±  0.04 6.64  ±  0.04 6.66  ±  0.04 6.39  ±  0.05 6.44  ±  0.05
Ar2+/H+ 5.79  ±  0.16 5.82  ±  0.17 5.69  ±  0.17 – – – – – –
O/H 8.36  ±  0.05 8.45  ±  0.05 8.55  ±  0.05 8.58  ±  0.05 8.58  ±  0.05 8.54  ±  0.05 8.57  ±  0.05 8.42  ±  0.05 8.56  ±  0.06
N/H 7.65  ±  0.08 7.71  ±  0.08 7.78  ±  0.08 7.80  ±  0.04 7.80  ±  0.04 7.80  ±  0.04 7.81  ±  0.04 7.73  ±  0.04 7.81  ±  0.04
S/H 6.90  ±  0.04 6.93  ±  0.03 7.01  ±  0.03 7.00  ±  0.03 6.96  ±  0.03 6.94  ±  0.03 6.97  ±  0.03 6.85  ±  0.03 6.94  ±  0.03

Notes.

(1)

The errors in the line fluxes refer only to uncertainties in the line measurements (see text). F(Hβ) in erg cm-2 s-1; ne in cm-3; Te in K; ionic abundances in log (X+i/H+) + 12.

(2)

Blended with He i λ3833.57 line.

(3)

Te([O iii]) obtained using the empirical relation between Te([O ii]) and Te([O iii]) obtained from the data by García-Rojas & Esteban (2007) (see text).

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