Interferometric Evidence for Resolved Warm Dust in the DQ Tau System

May 2009 • 2009ApJ...696L.111B

Authors • Boden, Andrew F. • Akeson, Rachel L. • Sargent, Anneila I. • Carpenter, John M. • Ciardi, David R. • Bary, Jeffrey S. • Skrutskie, Michael F.

Abstract • We report on near-infrared (IR) interferometric observations of the double-lined pre-main sequence binary system DQ Tau. We model these data with a visual orbit for DQ Tau supported by the spectroscopic orbit and analysis of Mathieu et al. Further, DQ Tau exhibits significant near-IR excess; modeling our data requires inclusion of near-IR light from an "excess" source. Remarkably, the excess source is resolved in our data, similar in scale to the binary itself (~0.2 AU at apastron), rather than the larger circumbinary disk (~0.4 AU radius). Our observations support the Mathieu et al. and Carr et al. inference of significant warm material near the DQ Tau binary.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2009ApJ...696L.111B
• PDF https://iopscience.iop.org/article/10.1088/0004-637X/696/2/L111/pdf
• PDF https://stacks.iop.org/1538-4357/696/L111/pdf
• PREPRINT http://arxiv.org/abs/0903.2521
• DATA https://irsa.ipac.caltech.edu/bibdata/2009/B/2009ApJ...696L.111B.html
• ELECTR https://doi.org/10.1088%2F0004-637X%2F696%2F2%2FL111
• SPIRES http://inspirehep.net/search?p=find+eprint+arXiv:0903.2521