All Tables

Table 1: Sources of spectroscopic observations: 1 - Observatory; 2 - code assigned to each combination of telescope + equipment used throughout this paper; 3 - telescope aperture and spectrograph; 4 - projected spectrograph entrance apertures (the first number is the slit width, and the second is the slit length); 5 - focus of the telescope.
Table 6: Flux scale factors for optical spectra.
Table 9: The wavelength integration intervals and the corresponding NLR contributions.
Table 10: Line and continuum fluxes. See the text for the definition of the parameters.
Table 11: The wavelength intervals for the H $\alpha$ and H $\beta$ wings and cores.
Table 12: The FWHM and the ratio $A={{\it HWHM}_{\rm red}/{\it HWHM}_{\rm blue}}$ of the red/blue, for the averaged and rms profiles of H $\alpha$ and H $\beta$ , during the three periods.
Table 13: Time lags and CCF coefficients for the whole monitoring period, for the three periods based on the profile shapes, and for the division based on the three values of the continuum intensity.
Table 2: Log of the spectroscopic observations: Columns: 3 - code according to Table 1; 4 - projected spectrograph entrance apertures; 5 - wavelength range covered; 6 - spectral resolution; 7 - slit position angle (PA) in degrees; 8 - mean seeing in arcsec.
Table 3: Corrections for the position angle effect. Columns: 1 - position angle (PA) in degrees; 2 - projected spectrograph entrance apertures in arcsec; 3 - slit position angle (PA) corrections for emission lines (kp); 4 - estimated PA correction error for emission line, e(kp); 5 - position angle (PA) corrections for continuum flux, kp(cnt); 6 - the estimated PA correction error for continuum flux, e (kp(cnt)).
Table 4: Correction for seeing effects, for apertures $2''\times 6''$ and $2.5''\times 6''$ . Columns: 1 - seeing intervals in arcsec; 2 - mean seeing in arcsec; 3 - our seeing correction for the emission lines fluxes, ks(our); 4 - estimated seeing correction error, e(ks); 5 - Peterson's seeing correction for the emission lines fluxes from Peterson et al. (1995), ks(Pet); 6 - our host galaxy seeing correction for the continuum fluxes, in units of 10^-14 erg s^-1 cm^-2 Å^-1, Gs(our); 7 - estimated host galaxy seeing correction error, e(Gs); 8 - Peterson's host galaxy seeing correction Gs(Pet) for the continuum fluxes from Peterson et al. (1995).
Table 5: Corrections for the seeing effects, for aperture $4.2''\times 19.8 ''$ . Columns: 1 - Seeing intervals in arcsec; 2 - mean seeing in arcsec; 3 - our seeing correction for the emission lines fluxes, ks(our); 4 - the estimated seeing correction error, e(ks); 5 - Peterson's seeing correction ks(Pet) for the emission lines fluxes from Peterson et al. (1995), ks(Pet); 6 - our host galaxy seeing correction for the continuum fluxes, in units of 10^-14 erg s^-1 cm^-2 Å^-1), Gs(our); 7 - the estimated host galaxy seeing correction error, e(Gs); 8 - Peterson's host galaxy seeing correction Gs(Pet) for the continuum fluxes from Peterson et al. (1995).
Table 7: Observed continuum, H $\alpha$ , H $\beta$ , H $\gamma$ , and HeII $\lambda~4686$ fluxes, reduced to the 6 m telescope aperture $2''\times 6''$ . The fluxes are corrected for position angle (to $\rm PA=90$ degree), seeing, and aperture effects. Columns: 2 - the continuum flux at 5117 Å (in units of 10^-14 erg s^-1 cm^-2 Å^-1), and the estimated continuum flux error; 3 - the H $\alpha$ total flux and the H $\alpha$ flux error; 4 - the H $\beta$ total flux and the H $\beta$ flux error; 5 - the H $\gamma$ total flux and the H $\gamma$ flux error; 6 - the HeII $\lambda$ 4686 total flux and the HeII $\lambda$ 4686 flux error. All line fluxes are in units of 10^-12 erg s^-1 cm^-2.
Table 8: Mean error (uncertainty) of our flux determinations for continuum, H $\alpha$ , H $\beta$ , H $\gamma$ , and HeII 4686emission lines in different years, and in the whole (11 years) observation period. Columns: 2 and 3 - the estimated mean continuum flux error in % and its sigma; 4 and 5 - the estimated mean H $\alpha$ flux error in % and its sigma; 6 and 7 - the estimated mean H $\beta$ flux error in % and its sigma; 8 and 9 - the estimated mean H $\gamma$ flux error in % and its sigma; 10 and 11 - the estimated mean flux error in % and its sigma, Bottom - mean error (uncertainty) in the whole (11 years) observation period.