Fig. 3
Distributions of the integrated EW(Hα) for the interacting (red) and control (blue) samples using an aperture size of 5 arcsec. Top and bottom panels: distributions of the star and non-star-forming galaxies, respectively. Left and right panels: EW(Hα) distributions measured using the 5 (EWcentral) and 30 (EWextended) arcsec apertures, respectively. For this classification we used the integrated emission line fluxes ratios presented in Sect. 2 using the same selecting aperture size.
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