X-ray spectroscopy of the Compton-thick Seyfert 2 ESO 138 − G1

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Table 3

Best-fit spectral parameters for the emission lines detected in the soft X-ray band.

Energy	Intensity	Identification
(1)	(2)	(3)

0.57 ± 0.02		OVII Lyα
0.72 ± 0.01	3.0 ± 1.3 × 10^-5	OVII RRC, Fe XVII 3s-2p
0.84 ± 0.02	2.5 ± 0.7 × 10^-5	Fe XVII-XVIII 3d-2p, OVIII RRC
0.93 ± 0.02	3.3 ± 0.9 × 10^-5	NeIX Heα
1.02^†		NeX Lyα, Fe XXI 3d-2p
1.14 ± 0.03	9.3 ± 5.8 × 10^-6	Fe XXIII-XXIV L
1.21	1.1 ± 0.5 × 10^-5	NeX Lyβ
1.34 ± 0.02		MgXI Heα
1.50 ± 0.02		MgXII Lyα
1.82 ± 0.02		SXIII Heα
		Si XXIV-XVI Lyα
	6.2 ± 1.8 × 10^-6	SXV Heα

Notes. See Sect. 3.2 for details. The columns give the following information: (1) energy of the line (keV); (2) intensity of the line (photons cm^-2 s^-1); (3) likely identification (e.g., Brinkman et al. 2002; Guainazzi & Bianchi 2007).

^(†)

indicates that the energy has been fixed to the laboratory energy of NeX Lyα due to the likely superposition of many unresolved Fe lines.

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