Table 12: Fits with a finite number of ionization components to the column densities of all elements but iron derived with model B, assuming solar abundances. The number of ionization components is indicated by N. In the last column we give the significance according to an F-test of the added component.
N $\chi^2$ /d.o.f. log $\xi$ log $N_{\rm H}$ Sign.

10^-9 W m m^-2

1 147/22 1.2 25.5

2 86/20 2.45, 1.15 26.1, 25.4 89

3 83/18 2.47, 1.17, -0.70 26.1, 25.4, 23.6 53

**Table 12:** Fits with a finite number of ionization components to the column densities of all elements but iron derived with model B, assuming solar abundances. The number of ionization components is indicated by N. In the last column we give the significance according to an F-test of the added component.
N	$\chi^2$ /d.o.f.	log $\xi$	log $N_{\rm H}$	Sign.
		10^-9 W m	m^-2
1	147/22	1.2	25.5
2	86/20	2.45, 1.15	26.1, 25.4	89
3	83/18	2.47, 1.17, -0.70	26.1, 25.4, 23.6	53

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observation and data reduction
	3 Spectral data analysis
	4 Timing analysis
	5 Discussion
	6 Ionization structure
	7 The outflow
	8 Summary and conclusions
	References
	Online Material
	Appendix A
	Appendix B
	Appendix C