Potential accuracy of speckle-interferometric measurements Binary stars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astrometry, Binary Stars, Error Analysis, Speckle Interferometry, Root-Mean-Square Errors, Stellar Luminosity, Stellar Magnitude

Scientific paper

The limiting possibilities of speckle-interferometric measurements of binary stars are investigated and the factors limiting them are analyzed. The potential accuracy in estimating the separation, position angle, and brightness difference of the components is investigated for the separate and joint estimation of these parameters. The limiting stellar magnitude for these circumstances of observation is determined in connection with the solution of a concrete measurement problem. The results obtained permit the planning of an experiment on speckle-interferometric measurements of binary stars.

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