Open Access

Fig. 6

image

Comparison of half-flux radii of ring models in H and K-bands as determined by PIONIER and GRAVITY observations (see Table E.1). Blue diamonds denote group-I sources, while the red triangles denote group-II sources. The gapped sources are marked with (g). The dash-dotted line is the resulting linear regression. The inset is a zoom on the smallest ring radii.

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