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High Angular Resolution Binary Star Interferometry

Published online by Cambridge University Press:  02 August 2016

Harold A. McAlister
Harold A. McAlister*
Affiliation:
Department of Physics, Georgia State University, Atlanta, Georgia, U.S.A.

Abstract

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The benefits and limitations of the application of high angular resolution interferometry to the study of binary stars are considered. The principle advantage of such observations is that they provide data complementary to parameters determined by other techniques and permit the direct determination of masses, angular diameters and distances to systems which would otherwise be inaccessible to such complete analysis. These values then directly lead to linear diameters, absolute magnitudes, absolute emergent fluxes and effective temperatures. The prospects for significantly increasing our knowledge of these fundamental astrophysical parameters are extremely promising. The applications of interferometry to surveys for new binary stars, to star clusters, and to wider visual binaries with the goal of detecting planetary perturbations are also briefly considered.

Type
The Scientific Programme
Information
International Astronomical Union Colloquium , Volume 50: High Angular Resolution Stellar Interferometry , January 1979 , pp. 3-1 - 3-16
Copyright
Copyright © 1979

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