Faint recombination lines in Galactic PNe with a [WC] nucleus

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Table 9:

Ionic abundance ratios from permitted lines in PB 8^a.
		O⁺⁺/H⁺
		I( $\lambda$ )/I(H $\beta$ )	X⁺ⁱ/H⁺
Mult.	$\lambda_0$	( $\times$ 10^-2)	( $\times$ 10^-5)
1^b	4638.85	0.040 $\pm$ 0.010	122
	4641.81	0.380 $\pm$ 0.030	153
	4649.14	0.458 $\pm$ 0.037	148
	4650.84	0.221 $\pm$ 0.027	125
	4661.64	0.222 $\pm$ 0.027	116
	4673.73	0.037:	113:
	4676.24	0.184 $\pm$ 0.024	210
	Sum		141
2	4317.14^c	0.210 $\pm$ 0.027	-
	4319.63	0.081 $\pm$ 0.021	112
	4325.76	0.036:	261:
	4336.83	0.054 $\pm$ 0.019	183
	4345.56^c	0.257 $\pm$ 0.028	-
	4349.43	0.197 $\pm$ 0.026	100
	4366.89	0.199 $\pm$ 0.026	260
	Sum		141
10^d	4069.62	0.391 $\pm$ 0.035	158
	4069.89	*	*
	4072.15	0.265 $\pm$ 0.029	109
	4075.86	0.275 $\pm$ 0.030	79
	4085.11	0.086 $\pm$ 0.022	191
	4092.93	0.038:	114:
	Sum		113
20^d	4097.22^c	0.281 $\pm$ 0.031	-
	4110.79	0.147 $\pm$ 0.025	601
	4119.22	0.087 $\pm$ 0.022	97
	Sum		204
3d-4f^d	4089.29	0.102 $\pm$ 0.022	85
	4303.82^e	0.086 $\pm$ 0.022	174
	4609.44	0.033:	64:
	Average		85
	Adopted		141 $\pm$ 7
		C⁺⁺/H⁺
6	4267.26	0.781 $\pm$ 0.055	69
	Adopted		69 $\pm$ 5
		N⁺⁺/H⁺
48	4239.40	0.128 $\pm$ 0.040	30
	Adopted		30 $\pm$ 6
		Ne⁺⁺/H⁺
57	4391.94	0.062 $\pm$ 0.020	15
	4409.30	0.061 $\pm$ 0.020	24
	Sum		19
	Adopted		19 $\pm$ 6

^a Only lines with intensity uncertainties lower than 40% have been considered (see text).
^b Corrected from NLTE effects (see text).
^c Blended with another line or affected by internal reflections or charge transfer in the CCD.
^d Recombination coefficients for intermediate coupling (Liu et al. 1995).
^e Blended with O II $\lambda$ 4303.61 line.

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