Published in
American Astronomical Society, Astronomical Journal, 6(140), p. 1623-1630, 2010
DOI: 10.1088/0004-6256/140/6/1623
Links
- ORCID
- American Astronomical Society
- [authors.library.caltech.edu]
- [arxiv.org] | PDF
- [authors.library.caltech.edu] | PDF
- [www.researchgate.net] | PDF
- [arxiv.org] | PDF
Tools
The Phases Differential Astrometry Data Archive. II. Updated Binary Star Orbits and a Long Period Eclipsing Binary
,
M. Williamson,
S. R. Kulkarni,
Maciej Konacki,
Bernard F. Burke,
M. M. Colavita,
M. Shao,
and Sloane J. Wiktorowicz
Full text: Download
Abstract
Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems have been combined with lower precision single-aperture measurements covering a much longer timespan (from eyepiece measurements, speckle interferometry, and adaptive optics) to determine improved visual orbits for 20 binary stars. In some cases, radial velocity observations exist to constrain the full three-dimensional orbit and determine component masses. The visual orbit of one of these binaries—α Com (HD 114378)—shows that the system is likely to have eclipses, despite its very long period of 26 years. The next eclipse is predicted to be within a week of 2015 January 24.