Data for article 'The near-infrared silhouette of the Flying Saucer edge-on disc revealed by the JWST JEDIce program'

The observation of the Flying Saucer in silhouette at 3.29 µm reveals that the midplane radial extent of small dust grains is∼235 au, i.e. larger than the large-grain disc extent previously determined to be 190 au from millimetre data. The scattered light observed in emission probes micron-sized icy grains at large vertical distances above the midplane. The vertical extent of the disc silhouette is similar at visible, near-IR, and mid-IR wavelengths, corroborating the conclusion that dust settling is inefficient for grains as large as tens of microns, both vertically and radially.