Speckle Observations of Binary Stars with the WIYN Telescope. IV. Differential Photometry

Details Speckle Observations of Binary Stars with the WIYN Telescope. IV. Differential Photometry Speckle Observations of Binary Stars with the WIYN Telescope. IV. Differential Photometry

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aj....127.1727h&link_type=abstract

The Astronomical Journal, Volume 127, Issue 3, pp. 1727-1735.

Astronomy and Astrophysics

Astronomy

27

Stars: Binaries: Visual, Techniques: Interferometric, Techniques: Photometric

Scientific paper

Five hundred seventy-six magnitude difference measures are presented for 260 binary stars. These measures are derived from CCD-based speckle observations taken at the WIYN 3.5 m telescope at Kitt Peak National Observatory during the period 1997-2000. Separations of the systems range from over 1" down to near the diffraction limit of the telescope. A study of multiple measures of the same targets indicates that the measures have a typical uncertainty of better than 0.13 mag per 2 minute observation, and that multiple observations can be averaged to arrive at smaller uncertainties. Results presented here are also compared, insofar as it is possible, with measures in the Hipparcos Catalogue and to previous studies using adaptive optics. No major systematic errors were identified.
The WIYN Observatory is a joint facility of the University of Wisconsin-Madison, Indiana University, Yale University, and the National Optical Astronomy Observatory.

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