Table 12: Spearman-rank correlations among spectral parameters of the soft excess tested models and X-ray parameters (luminosity and $\Gamma _{\rm 2-12}$ ). The displayed values are ( $r_{\rm s}$ , $P_{\rm s}$ ), where $r_{\rm s}$ is the rank correlation coefficient and $P_{\rm s}$ is the significance probability. The significant (i.e. >95%) correlations are marked in boldface (see text for details).
$kT_{\rm BB}$ $kT_{\rm DiskBB}$ $kT_{\rm Brem}$ $\Gamma_{\rm Soft}$

$L_{\rm0.5-2~keV}$ (0.46, 97.9) (-0.26, 82.4) (0.41, 96.8) (-0.15, 52.1)

$L_{\rm 2-10~keV}$
(0.48, 98.5) (-0.22, 73.1) (0.44, 98.2) (-0.23, 73.7)

$R_{\rm S/P}^{\rm0.5-2}$
(0.04, 13.3) (-0.09, 35.1) (-0.07, 29.0) (0.39, 94.7)

$R_{\rm S/P}^{\rm0.5-10}$ (0.12, 41.2) (-0.11, 42.3) (-0.10, 39.9) (0.45, 97.4)

$\Gamma _{\rm 2-12}$ (0.26, 78.1) (-0.20, 70.8) (-0.07, 27.6) (0.33, 89.4)

**Table 12:** Spearman-rank correlations among spectral parameters of the soft excess tested models and X-ray parameters (luminosity and $\Gamma _{\rm 2-12}$ ). The displayed values are ( $r_{\rm s}$ , $P_{\rm s}$ ), where $r_{\rm s}$ is the rank correlation coefficient and $P_{\rm s}$ is the significance probability. The significant (i.e. >95%) correlations are marked in boldface (see text for details).
	$kT_{\rm BB}$	$kT_{\rm DiskBB}$	$kT_{\rm Brem}$	$\Gamma_{\rm Soft}$
$L_{\rm0.5-2~keV}$	(0.46, 97.9)	(-0.26, 82.4)	(0.41, 96.8)	(-0.15, 52.1)
$L_{\rm 2-10~keV}$	(0.48, 98.5)	(-0.22, 73.1)	(0.44, 98.2)	(-0.23, 73.7)
$R_{\rm S/P}^{\rm0.5-2}$	(0.04, 13.3)	(-0.09, 35.1)	(-0.07, 29.0)	(0.39, 94.7)
$R_{\rm S/P}^{\rm0.5-10}$	(0.12, 41.2)	(-0.11, 42.3)	(-0.10, 39.9)	(0.45, 97.4)
$\Gamma _{\rm 2-12}$	(0.26, 78.1)	(-0.20, 70.8)	(-0.07, 27.6)	(0.33, 89.4)

Source LaTeX | All tables | In the text

	1 Introduction
	2 XMM-Newton observations
	3 Analysis of the spectra
	4 Discussion
	5 Conclusions
	References
	Online Material