Fig. 3.
Top panel: Hα flux map of SQ considering pixels with Hα contrast ≥5. Bottom panel: Hα radial velocity map of SQ considering pixels with contrast (Hα) ≥ 5. The inset plot in the right panel indicates the radial velocity map of NGC 7320, the foreground galaxy, with contrast (Hα) ≥ 5 (see the text for details). NG (new dwarf galaxy) indicates the position of the new dwarf galaxy in SQ (see Sect. 3.4).
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