# Tests of stellar model atmospheres by optical interferometry III: NPOI and VINCI interferometry of

@article{Wittkowski2006TestsOS,
title={Tests of stellar model atmospheres by optical interferometry III: NPOI and VINCI interferometry of},
author={M. Wittkowski and C. Hummel and J. Aufdenberg and V. Roccatagliata},
journal={Astronomy and Astrophysics},
year={2006}
}
Aims: We present a comparison of the visual and NIR intensity profile of the M0 giant gamma Sagittae to plane-parallel ATLAS 9 as well as to plane-parallel & spherical PHOENIX model atmospheres. Methods: We use previously described visual interferometric data obtained with the NPOI in July 2000. We apply the recently developed technique of coherent integration, and thereby obtain visibility data of more spectral channels and with higher precision than before. In addition, we employ new… Expand
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