Cepheid observations with the Sydney University Stellar Interferometer
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Davis, J.
Ireland, M. J.
Jacob, A. P.
North, J. R.
Owens, S. M.
Robertson, J. G.
Tango, W. J.
Tuthill, P. G.
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Abstract
Observations of the southern Cepheids ℓ Car and β Dor to yield the mean angular diameters and angular pulsation amplitudes have been made with the Sydney University Stellar Interferometer (SUSI)at a wavelength of 700 nm. The results of a preliminary analysis are compared with those obtained with the VLTI at 2.2 μm and excellent agreement between the results from the two instruments is found for ℓ Car but there are significant differences for β Dor.
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The Power of Optical/IR Interferometry: Recent Scientific Results and 2nd Generation Instrumentation: Proceedings of the ESO Workshop held in Garching, Germany, 4-8 April 2005
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