Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aj....139..205h&link_type=abstract
The Astronomical Journal, Volume 139, Issue 1, pp. 205-215 (2010).
Astronomy and Astrophysics
Astronomy
12
Binaries: Visual, Techniques: High Angular Resolution, Techniques: Interferometric, Techniques: Photometric
Scientific paper
Results of 974 speckle observations of 546 binary stars are presented. Observations were obtained at the WIYN 3.5 m Telescope at Kitt Peak National Observatory during the time interval from 2007 January to 2008 June. In all cases, the relative separation and position angle of the components are measured, and the magnitude difference is determined in 809 cases. The precision of the results as judged from repeat observations and objects with very well-determined orbits is similar to previous papers in this series, namely ~3 mas in separation and <1° in position angle in most cases. Similarly, the photometric precision remains consistent with previous WIYN speckle data, on average ~0.1 mag per observation. Six systems of special interest are discussed.
The WIYN Observatory is a joint facility of the University of Wisconsin-Madison, Indiana University, Yale University, and the National Optical Astronomy Observatories.
Ahmed Tasmia
Anderson Lisa M.
DeSousa Michael D.
Falta David
Horch Elliott P.
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