Table 4: Electron density derived from the Mg VIII 338.983/313.743 Å line ratio in the selected segments. The lower limit and the upper limit are indicated with "ll'' and "ul'', respectively.
Segment $\log~N_{\rm e}$
1(0) $7.3_{\rm ll}^{+0.5}$
2(1) $6.9_{\rm ll}^{+0.6}$
3(4) $7.4_{\rm ll}^{+0.5}$
4(7L) $\rm 8.0_{-0.6}^{+1.7}$
5(7U) $8.2_{-0.6}^{\rm ul}$
6(8L) $7.4_{\rm ll}^{+0.5}$
7(8U) $\rm 7.6_{-0.9}^{+0.5}$
8(9) $8.3_{-0.6}^{\rm ul}$


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