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Fig. 7.

image

Stellar mass (M) to H I gas fraction (fH I) scaling relation for the Coma cluster. The individual 3σ upper limits for the Coma H I non-detections are represented by the grey down-pointing triangles, while the distribution of the individual H I detections is shown by the blue density plot. The pink diamond and orange down-pointing triangle symbols represent the stacking of all Coma galaxies and only non-detections, respectively. The pink diamonds show measurements from a detected stacked spectrum, and the orange triangles indicate the 3σ upper limit in the case of a non-detection in the stacked spectrum. The round light green symbols and green line represent the stacking of field galaxies by Healy et al. (2019) and Fabello et al. (2011), respectively; the dashed green line is an extrapolation of the Fabello et al. (2011) results. The individual fH I measurements (pink stars) for galaxies in the Ursa Major cluster are also shown for reference (Verheijen & Sancisi 2001).

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