A long hard look at the minimum state of PG 2112+059 with XMM-Newton

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Volume 512 (March-April 2010)

A&A, 512 (2010) A75

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Table 3:

Spectral fits of the May 2007 EPIC spectra of PG 2112+059: Continuum properties.
Fit	Model^a	Absorber			Continuum		Distant	Statistic
		neutral			power-law		Reflection
		$N_{\rm H}$ ^b	cf^c	$\xi$ ^d	$\Gamma$ ^e	Norm^g	Norm^g	$\chi^2$	d^h
		[ $\rm 10^{22}~cm^{-2}$ ]		[ $\log$ ]		$[\rm keV^{-1}~cm^{-2}~s^{-1}]$	$[\rm keV^{-1}~cm^{-2}~s^{-1}]$
1	i * (p + d)	$\rm 18.3_{-1.9}^{+2.7}$	$\rm0.94_{-0.02}^{+0.01}$	$\rm 1.10_{-0.52}^{+0.45}$	$\rm 2.08_{-0.13}^{+0.16}$	$\rm 8.74_{-2.51}^{+2.29}\; 10^{-5}$	$\rm 9.24_{-5.14}^{+8.03}\; 10^{-5}$	93.2	99
2	i * (p + k(r) + d)	$\rm0.12_{-0.02}^{+0.39}$	$\rm 1.00_{-0.14}^{+0.00}$	$\rm -1.36_{-0.31}^{+3.04}$	$\rm 1.53_{-0.10}^{+0.16}$	$\rm 3.58_{-0.89}^{+0.74}\; 10^{-6}$	$\rm 1.45_{-0.95}^{+1.17}\; 10^{-5}$	96.7	93

Notes. Explanation of labels: ^(a) the spectral models described in Table 2; ^(b) equivalent column density; ^(c) covering fraction; ^(d) ionisation level of absorbing material $\xi=L/nr^{2}$ , as defined in XSPEC; ^(e) photon index of power-law continuum; ^(g) normalisation of photon flux at 1 keV; ^(h) degrees of freedom. The best-fit parameters for the ionised reflector, the disk, and the black hole are provided in Table 4. All errors are provided at the 90% confidence level.

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