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H. R. Schmitt, T. A. Pauls, J. T. Armstrong, R. B. Hindsley (NRL)
We will present the results of an ongoing project to measure the diameters of solar analog stars using optical interferometry. Our sample consists of stars brighter than V=5 mag, with spectral types F2 to K1 and luminosity classes III, IV and V. Observations were done with the Navy Prototype Optical Interferometer (NPOI), covering the wavelength range 550nm-850nm and using baselines with lengths between 20 m and 80 m, which give a maximum resolution of the order of 1.8 mas. Besides measuring the diameters of the stars we also fit limb darkening models, which provide a test to theoretical predictions.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.