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Fig. 11

image

Left: scatter plot of the HI masses of isolated galaxy pairs as a function of their optical diameters (data from Zasov & Sulentic 1994), shown with black crosses. The light grey points in the background are the HI detections of the AMIGA HI science sample. The solid blue line shows the MLE regression fit of this work and the dashed green line shows the HG84 relation. Right: HI-deficiency of isolated galaxy pairs (diagonal hatching) compared to the AMIGA HI science sample (light grey). HI-deficiency here is calculated with the D25-relation (without use of morphological type).

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