We present Submillimeter Array observations of the GQ Lup system at 1.3 millimeters wavelength with 0\farcs4 (∼60 AU) resolution. Emission is detected from the position of the primary star, GQ Lup A, and is marginally resolved. No emission is detected from the substellar companion, GQ Lup B, 0\farcs7 away. These data, together with models of the spectral energy distribution, suggest a compact disk around GQ Lup A with mass ∼3 MJup, perhaps truncated by tidal forces. There is no evidence for a gap or hole in the disk that might be the signature of an additional inner companion body capable of scattering GQ Lup B out to ∼100 AU separation from GQ Lup A. For GQ Lup B to have formed {\it in situ}, the disk would have to have been much more massive and extended.
@article{arxiv.0912.2433,
title = {Millimeter Dust Emission in the GQ Lup System},
author = {Yu Dai and David J. Wilner and Sean M. Andrews and Nagayoshi Ohashi},
journal= {arXiv preprint arXiv:0912.2433},
year = {2015}
}