Table 3: Fit parameters obtained for model B: x and y are the HI and HeI column densities in units of 10¹⁷ cm^-2.
Filament $I_{\rm fil}/I_{\rm qs}$ x y HeI/HI $\chi^2$

FP1 1.0 10.1 0.5 5 (-2) 0.4

F2 1.16 13.3 1.1 8.2 (-2) 0.7

F3 0.62 11.1 0.9 7.9 (-2) 0.2

**Table 3:** Fit parameters obtained for model B: x and y are the HI and HeI column densities in units of 10¹⁷ cm^-2.
Filament	$I_{\rm fil}/I_{\rm qs}$	x	y	HeI/HI	$\chi^2$
FP1	1.0	10.1	0.5	5 (-2)	0.4
F2	1.16	13.3	1.1	8.2 (-2)	0.7
F3	0.62	11.1	0.9	7.9 (-2)	0.2

Source LaTeX | All tables | In the text

	1 Introduction
	2 Data analysis
	3 Determination of ${\tau _{912}}$
	4 Discussion and conclusions
	References