SED of the source ID#11. The open circles show the broad-band photometry of ID#11, and the IRS spectrum of this source is shown in black. The dashed lines marked by numbers 1–5 show model SEDs for a same model disk with different inclination angles. From model 1 to model 5, the inclination angles are 83°, 84°, 84.5°, 85°, and 86°, respectively. In the model, we added a few small dust grains to the hole of the disk. The model with disk inclination  ~84.5° best fits the SED of ID#11. The dash-dotted line shows the model SED for a disk (inclination angle  ~84°) without small dust grains in the disk hole. The model SED generally fits the shape of the observed SED of ID#11, but fails to reproduce the observed silicate features.