Fig. 1
Gray-scale representation of the Hα emission from CGCG 97-121 (left) and 2MASX J11443212+2006238 (right), with levels chosen to highlight the bright part of the emission. Smoothed (by 2.8 arcsec) contours of the Hα-NET image show the low-brightness, extended tail behind 2MASX J11443212+2006238 whose maximum projected length is 85 kpc. North is at the top and east to the left.
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