Intensity plots of the nine rows around the peaks of the blob and its host galaxy. The pixels row containing the emission peaks of the blob and the galaxy companion is highlighted in violet, whereas in red we show the combination of all the nine lines fitted with a double Gaussian function (blue dotted line). The vertical axis is in arbitrary unit since, for sake of clarity, we add a vertical offset of 40 ADU to every individual row. Moreover, we also added 450 ADUs to the counts of the red solid line.