Anatomy of the AGN in NGC 5548 - VI. Long-term variability of the warm absorber

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Volume 587 (March 2016)

A&A, 587 (2016) A129

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Table 3

Emission features best-fit parameters of the 2002 observations.

Component	Line	Rest wavelength^b	FWHM^b	Luminosity^c

Broad emission	C vi1s−2p	33.74	0.90	1.9
lines^a	O vii1s−2p	21.60	0.58	3.4
	O vii1s−3p	18.63	0.50	1.4
	O viii1s−2p	18.97	0.51	2.8

Component	Line	Rest wavelength^b	σ _v ^d	Luminosity^c

Narrow emission	O viif	22.101	382	4.7 ± 0.4
lines	C vf	41.472	382	2.3 ± 0.1

Component	Line	Rest wavelength^b	σ _v ^d	Luminosity^c

Narrow emission	Ne x1s−2p	12.134	463	0.09
lines^e	Ne ixr	13.447	′′	0.22
	Ne ixi	13.553	′′	0.14
	Ne ixf	13.699	′′	0.78
	O viii1s−3p	16.006	′′	0.27
	O viir	21.602	′′	1.09
	O viii	21.807	′′	1.07
	N vii1s−2p	24.781	′′	0.33
	N vir	28.787	′′	0.26
	N vii	29.084	′′	0.25
	N vif	29.534	′′	0.60

Component	Ion	Emission measure^f	σ _v ^d	Temperature^g

Radiative recombination	C vi	90	463	5.6
continua (RRC)^e	C vii	61	′′	′′
	N vii	11	′′	′′
	O viii	29	′′	′′
	O ix	7.3	′′	′′
	Ne x	4.3	′′	′′
	Ne xi	1.6	′′	′′

Notes. Values without uncertainties are kept frozen.

^(a)

Values from Steenbrugge et al. (2005);

^(b)

in units of Å;

^(c)

in units of 10⁴⁰ erg s^-1;

^(d)

convolved velocity dispersion, in units of km s^-1;

^(e)

values from Whewell et al. (2015);

^(f)

in units of 10⁵⁹ cm^-3;

^(g)

in units of eV.

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