# High-Resolution Imaging of Dust Shells by Using Keck Aperture Masking and the IOTA Interferometer

@article{Monnier2004HighResolutionIO,
title={High-Resolution Imaging of Dust Shells by Using Keck Aperture Masking and the IOTA Interferometer},
author={John D. Monnier and Rafael Millan-Gabet and Peter G. Tuthill and Wesley A. Traub and Nathaniel P. Carleton and Vincent Coud{\'e} du Foresto and William C. Danchi and Marc G. Lacasse and S'ebastien Morel and Guy Perrin and Irene L. Porro and F. P. Schloerb and Charles H. Townes},
journal={The Astrophysical Journal},
year={2004},
volume={605},
pages={436 - 461}
}
• Published 19 January 2004
• Physics
• The Astrophysical Journal
We present first results of an experiment to combine data from Keck aperture masking and the Infrared-Optical Telescope Array to image the circumstellar environments of evolved stars with ~20 mas resolution. The unique combination of excellent Fourier coverage at short baselines and high-quality long-baseline fringe data allows us to determine the location and clumpiness of the innermost hot dust in the envelopes and to measure the diameters of the underlying stars themselves. We find evidence…
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