| |
 |
| Paper: |
Evidence for a Developing Gap in the Disk of TW Hydrae |
| Volume: |
324, Debris Disks and the Formation of Planets: A Symposium in Memory of Fred Gillett |
| Page: |
205 |
| Authors: |
Calvet, N.; Hartmann, L.; Wilner, D.; Walsh, A.; Sitko, M.L. |
| Abstract: |
We have developed a physically self-consistent model of the disk around the nearby 10 Myr old star TW Hya which matches the spectral energy distribution and 7 mm images of the disk. The model requires both significant dust size evolution and a partially-evacuated inner region, a distinct transition to a thicker disk at about 4 AU, and an outer disk radius of approximately 140 AU. The outermost part of the disk is optically thick, and requires grain sizes on the order of ∼ 1 cm, while the transition region (and possibly inner disk) contains micron-sized grains. The truncation of the outer disk may be the signpost of a developing gap due to the effects of a growing protoplanet. |
|
|
|
|
|
