Speckle interferometry at SOAR in 2012 and 2013

Abstract

We report the results of speckle runs at the 4.1-m Southern Astronomical Research (SOAR) telescope in 2012 and 2013. A total of 586 objects were observed. We give 699 measurements of 487 resolved binaries and upper detection limits for 112 unresolved stars. Eleven pairs (including one triple) were resolved for the first time. Orbital elements have been determined for the first time for 13 pairs; orbits of another 45 binaries are revised or updated.

Accepted for publication in the Astronomical Journal. 31 pages, 18 figures

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• The High Angular Resolution Multiplicity of Massive Stars
• Adaptive Optics Photometry and Astrometry of Binary Stars. III. A Faint Companion Search of O-Star Systems
• The Detection of Low Mass Companions in Hyades Cluster Spectroscopic Binary Stars

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