Fig. 3.

Modeled column density of 10 μm dust within ±0.5 AU of the ecliptic plane, rotated into the Neptune co-rotating frame to illuminate the structure of the disk (Han et al., 2011a). The white line shows the New Horizons trajectory integrated out to the Pluto encounter at 33 AU. Neptune and its orbit are shown by the black circle and line respectively. Note: The large majority of grain impacts to SDC will be ~0.5 μm. This plot was chosen to illustrate the significant MMR structure, which is more pronounced for larger grains.