High-resolution X-ray spectroscopy of Cen X−3 with XMM-Newton

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Table 6.

He-like and H-like emission lines detected at the 3σ level.

Line	λ_obs (Å)	Flux	FWHM (Å)
Line	λ_obs (Å)	(ph m⁻² s⁻¹)	FWHM (Å)
	Averaged spectrum

He-like Ne	13.541 $_{- 0.009}^{+ 0.007}$ $Mathematical equation: $ ^{+0.007}_{-0.009} $$	0.52 $_{- 0.07}^{+ 0.08}$ $Mathematical equation: $ ^{+0.08}_{-0.07} $$	0.07 $_{- 0.03}^{+ 0.04}$ $Mathematical equation: $ ^{+0.04}_{-0.03} $$
He-like Mg	9.233 $_{- 0.006}^{+ 0.007}$ $Mathematical equation: $ ^{+0.007}_{-0.006} $$	0.76 ± 0.14	0.005
H-like Mg	8.360 $_{- 0.022}^{+ 0.014}$ $Mathematical equation: $ ^{+0.014}_{-0.022} $$	0.43 ± 0.19	0.005

	HCR spectrum

He-like Ne	13.536 $_{- 0.009}^{+ 0.007}$ $Mathematical equation: $ ^{+0.007}_{-0.009} $$	0.62 ± 0.21	0.05 $_{- 0.05}^{+ 0.04}$ $Mathematical equation: $ ^{+0.04}_{-0.05} $$
H-like Ne	10.257 $_{- 0.013}^{+ 0.012}$ $Mathematical equation: $ ^{+0.012}_{-0.013} $$	0.57 $_{- 0.16}^{+ 0.15}$ $Mathematical equation: $ ^{+0.15}_{-0.16} $$	0.005
He-like Mg	9.233 $_{- 0.005}^{+ 0.010}$ $Mathematical equation: $ ^{+0.010}_{-0.005} $$	0.88 ± 0.18	0.005
H-like Mg	8.364 $_{- 0.012}^{+ 0.015}$ $Mathematical equation: $ ^{+0.015}_{-0.012} $$	0.83 ± 0.23	0.005

	HCR out-of-dips spectrum

He-like Ne	13.541 $_{- 0.009}^{+ 0.008}$ $Mathematical equation: $ ^{+0.008}_{-0.009} $$	0.6 $_{- 0.3}^{+ 1.9}$ $Mathematical equation: $ ^{+1.9}_{-0.3} $$	0.01 $_{- 0.01}^{+ 0.03}$ $Mathematical equation: $ ^{+0.03}_{-0.01} $$
H-like Ne	10.253 $_{- 0.010}^{+ 0.014}$ $Mathematical equation: $ ^{+0.014}_{-0.010} $$	0.58 ± 0.17	0.005
He-like Mg	9.233 $_{- 0.005}^{+ 0.010}$ $Mathematical equation: $ ^{+0.010}_{-0.005} $$	0.96 $_{- 0.19}^{+ 0.21}$ $Mathematical equation: $ ^{+0.21}_{-0.19} $$	0.005
H-like Mg	8.364 $_{- 0.013}^{+ 0.012}$ $Mathematical equation: $ ^{+0.012}_{-0.013} $$	0.96 ± 0.24	0.005

Notes. FWHM was fixed to 0.005 Å except for the He-like Ne. In the LCR spectrum no emission lines, if present, are detected at the 3σ level.

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