Speckle interferometry at SOAR in 2014
arXiv:1506.05718 · doi:10.1088/0004-6256/150/2/50
Abstract
The results of speckle interferometric observations at the SOAR telescope in 2014 are given. A total of 1641 observations were taken, yielding 1636 measurements of 1218 resolved binary and multiple stars and 577 non-resolutions of 441 targets. We resolved for the first time 56 pairs, including some nearby astrometric or spectroscopic binaries and ten new subsystems in previously known visual binaries. The calibration of the data is checked by linear fits to the positions of 41 wide binaries observed at SOAR over several seasons. The typical calibration accuracy is 0.1deg in angle and 0.3% in pixel scale, while the measurement errors are on the order of 3mas. The new data are used here to compute 194 binary-star orbits, 148 of which are improvements on previous orbital solutions and 46 are first-time orbits.
Accepted for publication in Astronomical Journal. 18 pages, 4 figures. Full tables available at http://www.ctio.noao.edu/~atokovin/papers/SOAR2014_table2.txt and http://www.ctio.noao.edu/~atokovin/papers/SOAR2014_table3.txt
References in corpus (8)
- Southern Massive Stars at High Angular Resolution: Observational Campaign and Companion Detection
- A Catalog of Multiplicity among Bright Stellar Systems
- A survey of the high order multiplicity of nearby solar-type binary stars with Robo-AO
- Speckle interferometry at SOAR in 2012 and 2013
- Unconstrained Astrometric Orbits for Hipparcos Stars with Stochastic Solutions
- Astrometric Orbits for Hipparcos Stochastic Binaries
- Common Proper Motion Companions to Nearby Stars: Ages and Evolution
- Imaging survey of subsystems in secondary components to nearby southern dwarfs
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