The intriguing nature of the high-energy gamma ray source XSS J12270-4859

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Volume 515 (June 2010)

A&A, 515 (2010) A25

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Table 3:

Spectral fit parameters of time-resolved spectra of XSS J1227 using an absorbed power law.
Model	EPIC-pn	EPIC-pn	EPIC-pn	EPIC-pn	EPIC-pn
	Dip	Out-of-dip	Flare	Quiescence	Post-flare dip
$N_{\rm H}$ (10²¹cm^-2)	$1.1\pm0.3$	$0.97 \pm 0.04$	$0.78\pm0.11$	$0.94\pm0.04$	$1.06~\pm~0.06$
$\Gamma$	$1.7\pm0.1$	$1.59\pm0.02$	$1.59\pm0.02$	$1.58\pm0.02$	1.32 $\pm$ 0.3
$N_{\rm H}$ (10²²cm^-2)	-	-	-	-	$\rm 6.11^{+2.4}_{-1.9}$
C_F	-	-	-	-	$\rm0.86_{-0.11}^{+0106}$
$\chi^2$ /d.o.f.	44/55	932/843	245/277	915/852	25/24
Flux $^{\rm abs,*}_{\rm 2{-}10 ~keV}$	$0.16\pm 0.03$	$1.0\pm0.2$	$2.6\pm0.1$	$0.9\pm0.2$	0.8 $\pm$ 0.1
	PCA Obs. 1	PCA Obs. 2	PCA Obs. 3	PCA Obs. 4	PCA Obs. 5
	Quiescence	Flare	Quiescence	Quiescence	Quiescence
$\Gamma$	$1.9 \pm0.2$	$1.7\pm0.1$	$1.6\pm0.3$	$1.7\pm0.1$	$1.7\pm0.1$
$\chi^2$ /d.o.f.	21/37	27/37	20/37	35/37	22/37
Flux $^{\rm abs,*}_{\rm 2{-}10 ~keV}$	$1.3\pm0.2$	$1.6\pm0.2$	$1.2\pm0.3$	$1.3\pm0.2$	$1.2\pm0.2$

Notes. ^* in units of 10^-11erg cm^-2 s^-1.

Source LaTeX | All tables | In the text

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