X-ray narrow line region variability as a geometry probe - The case of NGC 5548

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Table 3:

Important parameters of NGC 5548.
Parameter	Description	Value	Reference^a
L	Luminosity (1-1000 Ryd)	$6.6 \times 10^{36}$ W	1
log $\xi$	Ionization parameter	1.2	1
a	Parameter defined in Eq. 3	$1.64 \times 10^{17}$ m^-3 s	1
$M_{{\rm BH}}$	Black hole mass	$6.54\times10^{7}~M_{\odot}$	2
Y	Emission measure	$4.3 \times 10^{70}$ m^-3	1

^a References for parameter values: (1) Present Work; (2) Bentz et al. (2007).

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