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We present Very Large Array observations at 7 millimeters wavelength thatresolve the dust emission structure in the disk around the young star TW Hydraeat the scale of the ~4 AU (~0.16") radius inner hole inferred from spectralenergy distribution modeling. These high resolution data confirm directly thepresence of an inner hole in the dust disk and reveal a high brightness ringthat we associate with the directly illuminated inner edge of the disk. Theclearing of the inner disk plausibly results from the dynamical effects of agiant planet in formation. In an appendix, we develop an analytical frameworkfor the interpretation of visibility curves from power-law disk models withinner holes.

An Inner Hole in the Disk around TW Hydrae Resolved in 7 Millimeter Dust Emission