Observations of DG Tauri with the Keck Interferometer

Details Observations of DG Tauri with the Keck Interferometer Observations of DG Tauri with the Keck Interferometer

2003-07-02

arxiv.org/abs/astro-ph/0307051v1

Astrophys.J.592:L83-L86,2003

Astronomy and Astrophysics

Astrophysics

10 pages, 2 figures, to appear in ApJ Letters

Scientific paper

10.1086/377704

We present the first science results from the Keck Interferometer, a direct-detection infrared interferometer utilizing the two 10-meter Keck telescopes. The instrument and system components are briefly described. We then present observations of the T Tauri object DG Tau, which is resolved by the interferometer. The resolved component has a radius of 0.12 to 0.24 AU, depending on the assumed stellar and extended component fluxes and the model geometry used. Possible origins and implications of the resolved emission are discussed.

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