INTERFEROMETRIC EVIDENCE FOR RESOLVED WARM DUST IN THE DQ TAU SYSTEM
Journal Article
·
· Astrophysical Journal (Online)
- Division of Physics, Math, and Astronomy, California Institute of Technology, MS 105-24, Pasadena, CA 91125 (United States)
- NASA Exoplanet Science Institute, California Institute of Technology, 770 South Wilson Ave., Pasadena CA 91125 (United States)
- Department of Physics and Astronomy, Colgate University Hamilton NY 13346 (United States)
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 ({approx}0.2 AU at apastron), rather than the larger circumbinary disk ({approx}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.
- OSTI ID:
- 21300723
- Journal Information:
- Astrophysical Journal (Online), Journal Name: Astrophysical Journal (Online) Journal Issue: 2 Vol. 696; ISSN 1538-4357
- Country of Publication:
- United States
- Language:
- English
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