Observations of Binary Stars with the Differential Speckle Survey Instrument. IV. Observations of Kepler, CoRoT, and Hipparcos Stars from the Gemini North Telescope

Creators: Horch, Elliott P.; Howell, Steve B.; Everett, Mark E.; Ciardi, David R.

Abstract

We present the results of 71 speckle observations of binary and unresolved stars, most of which were observed with the DSSI speckle camera at the Gemini North Telescope in 2012 July. The main purpose of the run was to obtain diffraction-limited images of high-priority targets for the Kepler and CoRoT missions, but in addition, we observed a number of close binary stars where the resolution limit of Gemini was used to better determine orbital parameters and/or confirm results obtained at or below the diffraction limit of smaller telescopes. Five new binaries and one triple system were discovered, and first orbits are calculated for other two systems. Several systems are discussed in detail.

Additional Information

© 2012 American Astronomical Society. Received 2012. September 5; accepted 2012 October 2; published 2012. November 2. We thank the Kepler Science Office located at the NASA Ames Research Center for providing partial financial support for the upgraded DSSI instrument. It is also a pleasure to thank Steve Hardash, Andy Adamson, Inger Jorgensen, and the entire summit crew for their excellent work in getting the instrument to the telescope and installing it. We appreciate the collaboration of Thierry Appourchaux in pointing out the potential importance of YSC 13 in the determination of stellar masses from Kepler data. This work was funded by the Kepler Science Office and NSF Grant AST-0908125. It made use of the Washington Double Star Catalog maintained at the U.S. Naval Observatory and the SIMBAD database, operated at CDS, Strasbourg, France.

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