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The Keck I/HIRES and TNG/SARG Radial Velocity Survey of Speckle Binaries

Published online by Cambridge University Press:  23 April 2012

Milena Ratajczak ,
Maciej Konacki ,
Shrinivas R. Kulkarni  and
Matthew W. Muterspaugh
Milena Ratajczak
Affiliation:
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Rabiańska 8, 87-100 Toruń, Poland, email: [email protected]
Maciej Konacki
Affiliation:
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Rabiańska 8, 87-100 Toruń, Poland, email: [email protected] Astronomical Observatory of Adam Mickiewicz University, ul. Sloneczna 36, 60-286 Poznań, Poland
Shrinivas R. Kulkarni
Affiliation:
California Institute of Technology, Division of Physics, Mathematics and Astronomy, Pasadena, CA 91125, USA
Matthew W. Muterspaugh
Affiliation:
Tennessee State University, Department of Mathematics and Physics, College of Arts and Sciences, Boswell Science Hall, Nashville, TN 37209, USA
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Abstract

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A sample of about 160 speckle binary stars was observed with the Keck I telescope and its Échelle HIRES spectrograph over the years 2003-2007 in an effort to detect substellar and planetary companions to components of binary and multiple star systems. This data set was supplemented with the data obtained at the TNG telescope equipped with the SARG Échelle spectrograph over the years 2006-2007. The high-resolution (R = 65000 for HIRES and R = 86000 for SARG) and high signal-to-noise (typically 75-150) spectra were used to derive radial velocities of the components of the observed speckle binaries. Here, we present a summary of this effort, which includes the discovery of new triple star systems and improved orbital solutions of a few known binaries.

Keywords

stars: binaries: visualtechniques: radial velocities
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 472 - 473
Copyright
Copyright © International Astronomical Union 2012

References

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