PKS 2005-489 at VHE: four years of monitoring with HESS and simultaneous multi-wavelength observations

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Table 3:

Fits to the X-ray spectra^a in the different epochs.
Instrument	Band	Date	Model^b	$\Gamma_1$	$E_{\rm break}$	$\Gamma_2$	$F_{0.1{-}2.0~\rm keV}$ ^b	$F_{2{-}10~\rm keV}$ ^b	$\chi^2_{\rm r}$ (NDF)
	keV				keV		erg cm^-2 s^-1
XMM Mos2+PN	0.15-10	4/10/04	p.l.	$3.04\pm0.02$	-	-	2.46 $\;\times10^{-11}$	1.03 $\;\times10^{-12}$	1.110 (284)
			b.p.l.	$3.06\pm0.02$	$2.5\pm0.5$	$2.64\pm0.20$	2.77 $\;\times10^{-11}$	1.19 $\;\times10^{-12}$	1.048 (282)
RXTE PCU2	3-20	20/8-19/9/05	p.l.	-	-	$2.90\pm0.18$	-	7.54 $\;\times10^{-12}$	0.79 (16)
XMM Mos+PN	0.15-10	26/9/05	p.l.	$2.31\pm0.01$	-	-	7.55 $\;\times10^{-11}$	1.93 $\;\times10^{-11}$	1.138 (860)
			b.p.l.	$2.34\pm0.01$	$0.79\pm0.11$	$2.30\pm0.01$	7.72 $\;\times10^{-11}$	1.95 $\;\times10^{-11}$	1.122 (858)
XMM Mos+PN	0.15-10	28/9/05	p.l.	$2.37\pm0.01$	-	-	8.01 $\;\times10^{-11}$	1.77 $\;\times10^{-11}$	1.509 (888)
			b.p.l.	$2.39\pm0.01$	$1.78\pm0.15$	$2.31\pm0.02$	8.19 $\;\times10^{-11}$	1.83 $\;\times10^{-11}$	1.372 (886)

Notes. ^(a) The errors are reported at a 90% confidence level for 1 parameter ( $\Delta\chi^2=2.71$ ). ^(b) Fits with fixed Galactic $N_{\rm H}=3.93\times10^{20}$ cm^-2; power-law (p.l.) and broken power-law (b.p.l.) models. Unabsorbed fluxes.

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