Density diagnostics of ionized outflows in active galactic nuclei - X-ray and UV absorption lines from metastable levels in Be-like to C-like ions

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Volume 607 (November 2017)

A&A, 607 (2017) A100

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Table 3

Characteristic absorption lines from the ground and metastable level in B-like ions.

Index	1		2

n _j	Lower	Upper (†)	Lower	Upper

2−2	2s²2p (²P_1/2)	2s2p² (²P_1/2)	2s²2p (²P_3/2)	2s2p² (²P_3/2)

Ion	λ (Å)	f	λ (Å)	f

C ii	903.962	0.33	904.142	0.42
N iii	685.515	0.28	685.818	0.36
O iv	554.076	0.23	554.514	0.29
Ne vi	401.146	0.17	401.941	0.22
Mg viii	313.754	0.13	315.039	0.18
Si x	256.384	0.09	258.372	0.15
S xii	227.490	0.07 ()	218.200	0.13
Ar xiv	194.401	0.08 ()	187.962	0.12
Ca xvi	168.868	0.08 ()	164.165	0.11
Fe xxii	117.144	0.08	114.409	0.09

n _j	Lower	Upper	Lower	Upper

2−3	2s²2p (²P_1/2)	2s²3d (²D_3/2)	2s²2p (²P_3/2)	2s²3d (²D_5/2)

Ion	λ (Å)	f	λ (Å)	f

C ii	687.053	0.33	687.346	0.30
N iii	374.198	0.44	374.434	0.39
O iv	238.360	0.50	238.570	0.45
Ne vi	122.516	0.56	122.701	0.50
Mg viii	74.858	0.60	75.034	0.54
Si x	50.524	0.62	50.691	0.56
S xii	36.399	0.63	36.564	0.57
Ar xiv	27.469	0.64	27.631	0.58
Ca xvi	21.451	0.65	21.609	0.58
Fe xxii	11.767	0.67	11.921	0.59

n _j	Lower	Upper (†)	Lower	Upper

1−2	2s²2p (²P_1/2)	1s2s²2p² (²P_3/2)	2s²2p (²P_3/2)	1s2s²2p² (²P_3/2)

Ion	λ (Å)	f	λ (Å)	f

C ii	43.050	0.13	43.049	0.17
N iii	30.533	0.16	30.532	0.20
O iv	22.762	0.18	22.761	0.22
Ne vi	14.030	0.20	14.030	0.25
Mg viii	9.500	0.22	9.500	0.28
Si x	6.853	0.23	6.853	0.29
S xii	5.179	0.25 ()	5.174	0.30
Ar xiv	4.048	0.27 ()	4.046	0.31
Ca xvi	3.249	0.29 ()	3.247	0.31
Fe xxii	1.882	0.32 ()	1.882	0.30

Notes. For the 2s−2p (n_j = 2−2) and 1s−2p (n_j = 1−2) transitions from the ground (lower) level, the upper levels (marked †) vary for different elements (exceptions are marked following the f-values).

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