Observations of binary stars by speckle interferometry. III

Details Observations of binary stars by speckle interferometry. III Observations of binary stars by speckle interferometry. III

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.198..817m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 198, Mar. 1982, p. 817-824. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

18

Binary Stars, Interferometry, Speckle Patterns, Spectroscopic Telescopes, Stellar Spectrophotometry, Diffraction Limited Cameras, Star Clusters, Stellar Luminosity, Stellar Mass

Scientific paper

A 3.9-m telescope with 0.03-arcsec classical Rayleigh diffraction limit at 500 nm was used in 25 speckle interferometry observations of 21 objects, among which Gamma Tau is for the first time resolved into two components. The accuracy of the technique is sufficient to demonstrate that there is no large, systematic error in the semi-major axes quoted by the visual observers for the case of four visual binaries in the Hyades cluster. Assuming the distance modulus of Hanson (1975), these observations place the stars on the normal mass-luminosity relationship, so that a separate relationship for the Hyades cluster is obviated.

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