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Proceedings Paper

Measurements of binary stars with coherent integration of NPOI data
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Paper Abstract

In this paper we use coherently integrated visibilities (see separate paper in these proceedings1) to measure the properties of binary stars. We use only the phase of the complex visibility and not the amplitude. The reason for this is that amplitudes suffer from the calibration effect (the same for coherent and incoherent averages) and thus effectively provide lower accuracy measurements. We demonstrate that the baseline phase alone can be used to measure the separation, orientation and brightness ratio of a binary star, as a function of wavelength.

Paper Details

Date Published: 28 July 2008
PDF: 6 pages
Proc. SPIE 7013, Optical and Infrared Interferometry, 701342 (28 July 2008); doi: 10.1117/12.790290
Show Author Affiliations
Anders M. Jorgensen, New Mexico Institute of Mining and Technology (United States)
H. Schmitt, Naval Research Lab. (United States)
Interferometrics, Inc. (United States)
R. Hindsley, Naval Research Lab. (United States)
J. T. Armstrong, Naval Research Lab. (United States)
T. A. Pauls, Naval Research Lab. (United States)
D. Mozurkewich, Seabrook Engineering (United States)
D. J. Hutter, Naval Observatory Flagstaff Station (United States)
C. Tycner, Central Michigan Univ. (United States)

Published in SPIE Proceedings Vol. 7013:
Optical and Infrared Interferometry
Markus Schöller; William C. Danchi; Françoise Delplancke, Editor(s)

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