Spectral optical monitoring of 3C 390.3 in 1995–2007 - I. Light curves and flux variation in the continuum and broad lines

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Volume 517 (July 2010)

A&A, 517 (2010) A42

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Table 5:

Variability parameters.
Feature	Region (obs) [Å]	F(mean)^a	$\sigma$ (F)^a	R(max)/R(min)	F(var)
continuum	5369-5399	2.31	1.07	5.2	0.46
H $\beta$ -all	4909-5353	2.39	0.91	4.7	0.38
H $\alpha$ -all	6740-7160	9.42	3.36	3.4	0.35
H $\beta$ -blue wing	4977-5097	0.88	0.37	4.9	0.41
H $\beta$ -core	5097-5165	0.63	0.24	4.7	0.38
H $\beta$ -red wing	5165-5268	0.70	0.26	4.3	0.37
H $\alpha$ -blue wing	6720-6882	4.13	1.70	3.5	0.40
H $\alpha$ -core	6882-6974	2.63	1.16	4.3	0.42
H $\alpha$ -red wing	6974-7136	2.97	1.07	3.4	0.35
H $\beta$ -blue part	4977-5131	1.20	0.48	4.8	0.39
H $\beta$ -red part	5131-5268	1.00	0.38	4.5	0.38
H $\alpha$ -blue part	6720-6928	5.46	2.23	3.6	0.40
H $\alpha$ -red part	6928-7136	4.24	1.66	3.7	0.38

Notes. Column (1): the mean flux. Column (2): the flux standard deviation. Column (3): the ratio of the maximum to the minimum flux in the monitoring period. Column (4): the measured (uncertainty-corrected) estimate of the variation amplitude with respect to the mean flux.
^(a) The continuum flux is in units $10^{-15}~\rm erg~cm^{-2}~s^{-1}~A^{-1}$ , and the line flux is in $10^{-13}~\rm erg~cm^{-2}~s^{-1}$ .

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