Spectro-interferometry of the Be Star δ Sco: Near-infrared Continuum and Gas Emission Region Sizes in 2007

  title={Spectro-interferometry of the Be Star $\delta$ Sco: Near-infrared Continuum and Gas Emission Region Sizes in 2007},
  author={Rafael Millan-Gabet and John D. Monnier and Yamina Touhami and Douglas R. Gies and Erica N. Hesselbach and Ettore Pedretti and Nathalie D. Thureau and M. Zhao and Theo A. ten Brummelaar},
  journal={The Astrophysical Journal},
We present near-infrared H- and K-band spectro-interferometric observations of the gaseous disk around the primary Be star in the δ Sco binary system, obtained in 2007 (between periastron passages in 2000 and 2011). Observations using the CHARA/MIRC instrument at H band resolve an elongated disk with a Gaussian FWHM 1.18 × 0.91 mas. Using the Keck Interferometer (KI), the source of the K-band continuum emission is only marginally spatially resolved, and consequently we estimate a relatively… 

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