Multiwavelength campaign on Mrk 509 - II. Analysis of high-quality Reflection Grating Spectrometer spectra

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Table 6

Wavelengths (Å) of the O iv 1s–2p transitions; all transitions are from the ground state to 1s2s²2p².

²D_3/2	²P_1/2	²P_3/2	²S_1/2	Reference

22.777	22.729	22.727	22.571	HULLAC^a
22.755	22.739	22.736	22.573	Cowan code^b
22.77	22.74	22.74	22.66	AS2 (Autostructure)^c
22.78	22.75	22.75	22.65	HF1 (Cowan code)^c
22.73	22.67		22.46	R-matrix^d
–	22.741 ± 0.004		–	experiment^e

22.777	22.741	22.739	22.571	Adopted value
0.010	0.004	0.004	0.025	Adopted uncertainty

Notes.

^(a)

E. Behar (2001, priv. comm.).

^(b)

A.J.J. Raassen (2001, priv. comm.)

^(c)

García et al. (2005).

^(d)

Pradhan et al. (2003).

^(e)

Gu et al. (2005).

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