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Fig. 2
Year-averaged profiles (solid line) and their rms (dashed line) of the Hα broad emission line in 1995–2007. The abscissa (OX) shows the radial velocities with respect to the narrow component of the Hα line. The ordinate (OY) shows the flux in units of 10-16 erg cm-2 s-1 Å-1.
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