Searching for Intrinsic Variations in Eclipsing Binary Stars

Volume 22 number 2 (1993)

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Stephen P. Cook

Arkansas Tech University, Russellville, AR

Abstract

Using a database of nearly 4000 visual estimates made by the author between 1967 and 1993, evidence for intrinsic variations on a time scale of years is sought after 64 eclipsing binary stars. While none is found for most stars, certainb objects warrant further investigation.