Multiple-telescope optical interferometric array

Harold A. McAlister; William G. Bagnuolo Jr.; W. I. Hartkopf; Allen K. Garrison

doi:10.1117/12.19279

1 August 1990 Multiple-telescope optical interferometric array

Harold A. McAlister, William G. Bagnuolo Jr., W. I. Hartkopf, Allen K. Garrison

Proceedings Volume 1237, Amplitude and Intensity Spatial Interferometry; (1990) https://doi.org/10.1117/12.19279
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

A feasibility study of a multiple telescope array for high-spatial-resolution astronomy has been completed, and an initial design concept has been defined. The array (referred to as the CHARA array for Georgia State University's Center for High Angular Resolution Astronomy) would consist of seven 1-m-aperture telescopes in a VLA-type configuration contained within a circle of 400-m-diameter to provide a limiting resolution of 0.3 milliarcsec for stellar angular diameter measurements or 0.1 mas for binary-star measurements. The initial scientific program will be directed at the imaging of stars to determine stellar radii, masses, temperatures, distances, and surface morphology. The array is also intended to provide the means of developing techniques for the very-high-resolution imaging of a large class of objects with geometries far more complicated than those of stars and star systems.

Citation Download Citation

Harold A. McAlister, William G. Bagnuolo Jr., W. I. Hartkopf, and Allen K. Garrison "Multiple-telescope optical interferometric array", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); https://doi.org/10.1117/12.19279

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