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arXiv · 0704.2422

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

A. M. Hughes·D. J. Wilner·N. Calvet·P. D'Alessio·M. J. Claussen·M. R. Hogerheijde
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Abstract

We present Very Large Array observations at 7 millimeters wavelength that resolve the dust emission structure in the disk around the young star TW Hydrae at the scale of the ~4 AU (~0.16") radius inner hole inferred from spectral energy distribution modeling. These high resolution data confirm directly the presence of an inner hole in the dust disk and reveal a high brightness ring that we associate with the directly illuminated inner edge of the disk. The clearing of the inner disk plausibly results from the dynamical effects of a giant planet in formation. In an appendix, we develop an analytical framework for the interpretation of visibility curves from power-law disk models with inner holes.

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A. M. Hughes, D. J. Wilner, N. Calvet, P. D'Alessio, M. J. Claussen, M. R. Hogerheijde. 2007-04-18. An Inner Hole in the Disk around TW Hydrae Resolved in 7 Millimeter Dust Emission. https://doi.org/10.1086/518885

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