Speckle Interferometry at SOAR in 2010 and 2011: Measures, Orbits, and Rectilinear Fits
Abstract
We report on the results of speckle observations at the 4.1 m SOAR telescope in 2010 and 2011. A total of 639 objects were observed. We give 562 measurements of 418 resolved binaries, including 21 pairs resolved for the first time, and upper detection limits for 221 unresolved stars. New orbital elements have been determined for 42 physical pairs, of which 22 are first-time calculations; the rest are corrections, sometimes substantial. Linear elements are calculated for nine apparently optical doubles. We comment on new pairs, new orbital solutions, and other remarkable objects.
Based on observations at the SOAR telescope, NOAO proposal 2010B-0096. SOAR is operated by AURA, Inc., under contract with the National Science Foundation.- Publication:
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The Astronomical Journal
- Pub Date:
- February 2012
- DOI:
- 10.1088/0004-6256/143/2/42
- Bibcode:
- 2012AJ....143...42H
- Keywords:
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- binaries: general;
- techniques: interferometric