Multiwavelength campaign on Mrk 509 - VIII. Location of the X-ray absorber

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Table 8

Parameters for the model of a power law plus three Gaussians fitted to the pn spectra of Mrk 509 taken between 2000–2006, divided by the 2009 spectrum as described in the text.

yyyy-mm-dd	t _exp ^a	ΔΓ^b	Flux^c	N _C ^d	N _D ^d	N _E ^d

2000-10-25	20.4	0.296(8)	0.4244(16)	−0.3(3)	−1.3(4)	−0.8(4)
2001-04-20	30.1	0.107(5)	0.6558(17)	−1.8(4)	−4.9(4)	−2.5(4)
2005-10-16	59.8	0.070(3)	0.7483(12)	+0.6(3)	+0.0(3)	+0.0(3)
2005-10-18	32.4	0.006(5)	0.7885(17)	−0.0(4)	+0.2(4)	−0.4(4)
2006-04-25	47.7	0.129(4)	0.7717(14)	+0.1(3)	−0.9(3)	−0.6(3)

Notes. Digits in parenthesis are the standard deviations in the last digits of the given value.

^(a)

Net exposure time (ks) of the pn observation; the total exposure time for the 2009 observations is 430.6 ks.

^(b)

Power-law index of the ratio; more positive numbers indicate harder spectra.

^(c)

Ratio of the normalisations at 1 keV.

^(d)

Normalisations of the Gaussians for components C–E as labelled, multiplied by 100.

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