A high spectral resolution map of the nuclear emitting regions of NGC 7582

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Table 3

Emission lines derived from the fit to the 2048 channel MEG and 1024 channel HEG spectra.

Rest energy^a	Intensity	σ	ID^b	Atomic energy^c	ΔC^d/ d.o.f.
(eV)	(10^-6 ph cm^-2 s^-1)	(eV)		(eV)

		1 ^f	Mg xi (f)	1331	3.9/2
			Mg xi (r)	1352	32.5/3
			Mg xii Lyα	1473	18.6/3
		4.7 ^t	Mg xii Lyβ	1745	6.5/2
			Si xiii (f)	1839	49.1/3
		6.5 ^t	Si xiii (r)	1865	33.3/2
			Si xiv Lyα	2006	23.5/3
		6.2 ^t	Si xiv Lyβ	2376	9.4/2
		1 ^f	S xv (f)	2430	14.2/2
		1 ^f	S xv (r)	2461	9.9/2
		1 ^f	S xvi Lyα	2622	5.4/2
		1 ^f	S xvi Lyβ	3106	7.1/2
			Ar xvii (f)	3104
		1 ^f	Ar xviii Lyα	3323	17/2
			Fe Kα₁	6390	112.5/3
			Fe Kα₂	6403

Notes. The statistic for the model with no lines is C/ d.o.f. = 1122.9/683. In the last column we list the improvement of the fit upon adding each of the emission lines.

^(a)

Measured line energy in the NGC 7582 rest frame.

^(b)

Possible identification.

^(c)

Known atomic energy of the most likely identification of the line in eV, from NIST (http://physics.nist.gov/PhysRefData/ASD/).

^(d)

Improvement in C-statistic upon adding the line.

^(f)

Denotes the parameter is fixed.

^(t)

Indicates that the σ is tied to the width of another transition from the same ion species.

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