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Multi-wavelength Optical Aperture Synthesis

Published online by Cambridge University Press:  25 April 2016

R.G. Marson ,
T.R. Bedding  and
J.G. Robertson
R.G. Marson
Affiliation:
School of Physics, University of Sydney, NSW 2006
T.R. Bedding
Affiliation:
School of Physics, University of Sydney, NSW 2006
J.G. Robertson
Affiliation:
School of Physics, University of Sydney, NSW 2006
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Abstract

The technique of aperture synthesis is well developed in radio astronomy. When applied to the optical regime, aperture synthesis allows one to partially overcome the blurring effects of the atmosphere and increase the angular resolution of large telescopes to the diffraction limit.

MAPPIT (Masked APerture-Plane Interference Telescope) is a multi-element interferometer which operates at the coude focus of the 3.9 m Anglo-Australian Telescope. This instrument has recently been reconfigured to operate in a dispersed mode so that simultaneous observations in a band of wavelengths are possible. We will discuss this instrument’s new mode and present observations of the double star δ Sco and an angular diameter of the previously unresolved red giant β Gru.

Type
Instruments and Basic Astronomy
Information
Publications of the Astronomical Society of Australia , Volume 10 , Issue 1 , 1992 , pp. 71 - 73
Copyright
Copyright © Astronomical Society of Australia 1992

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References

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