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Proceedings Paper

Multiwavelength visibility measurements of the red giant R Doradus
Author(s): A. P. Jacob; Tim R. Bedding; J. Gordon Robertson; John R. Barton; Christopher A. Haniff; Ralph G. Marson; Michael Scholz
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Paper Abstract

We present visibility measurements of the nearby Mira-like star R Doradus taken over a wide range of wavelengths (650 - 990 nm). The observations were made using MAPPIT (Masked APerture-Plane Interference Telescope), an interferometer operating at the 3.9-m Anglo-Australian Telescope. We used a slit to mask the telescope aperture and prism to disperse the interference pattern in wavelength. We observed in R Dor strong decreases in visibility within the TiO absorption bands. The results are in general agreement with theory but differ in detail, suggesting that further work is needed to refine the theoretical models.

Paper Details

Date Published: 5 July 2000
PDF: 9 pages
Proc. SPIE 4006, Interferometry in Optical Astronomy, (5 July 2000); doi: 10.1117/12.390197
Show Author Affiliations
A. P. Jacob, Univ. of Sydney (Australia)
Tim R. Bedding, Univ. of Sydney (Australia)
J. Gordon Robertson, Univ. of Sydney (Australia)
John R. Barton, Anglo-Australian Observatory (Australia)
Christopher A. Haniff, Univ. of Cambridge (United Kingdom)
Ralph G. Marson, National Radio Astronomy Observatory (United States)
Michael Scholz, Univ. Heidelberg (Germany)

Published in SPIE Proceedings Vol. 4006:
Interferometry in Optical Astronomy
Pierre J. Lena; Andreas Quirrenbach, Editor(s)

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