Observations of DG Tauri with the Keck Interferometer

doi:10.1086/377704

Observations of DG Tauri with the Keck Interferometer

Colavita, M.
Akeson, R.
Wizinowich, P.
Shao, M.
Acton, S.
Beletic, J.
Bell, J.
Berlin, J.
Boden, A.
Booth, A.
Boutell, R.
Chaffee, F.
Chan, D.
Chock, J.
Cohen, R.
Crawford, S.
Creech-Eakman, M.
Eychaner, G.
Felizardo, C.
Gathright, J.
Hardy, G.
Henderson, H.
Herstein, J.
Hess, M.
Hovland, E.
Hrynevych, M.
Johnson, R.
Kelley, J.
Kendrick, R.
Koresko, C.
Kurpis, P.
Le Mignant, D.
Lewis, H.
Ligon, E.
Lupton, W.
McBride, D.
Mennesson, B.
Millan-Gabet, R.
Monnier, J.
Moore, J.
Nance, C.
Neyman, C.
Niessner, A.
Palmer, D.
Reder, L.
Rudeen, A.
Saloga, T.
Sargent, A.
Serabyn, E.
Smythe, R.
and 13 more

We present the first science results from the Keck Interferometer, a direct-detection infrared interferometer utilizing the two 10 m 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 0.12-0.24 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.

Publication:

The Astrophysical Journal

Pub Date:

August 2003

DOI:

10.1086/377704

10.48550/arXiv.astro-ph/0307051

arXiv: