
Proceedings Paper
Limb-darkened angular diameters of stars with combined infrared and optical interferometryFormat | Member Price | Non-Member Price |
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Paper Abstract
We present the angular diameters, physical radii, and effective temperatures of five stars observed using both
the Palomar Testbed Interferometer (PTI) and the Navy Prototype Optical Interferometer (NPOI). These preliminary
results are part of a larger project focused on measuring the angular diameters of the 62 stars that have
been observed with both instruments. We plan to achieve diameter accuracies of 0.5% or better through the
combination of infrared- and visible-wavelength data from PTI and the NPOI, respectively. The difference in
limb-darkening effects between the two wavelength regimes, together with other external parameters, will allow
us to test the atmospheric models on which the limb-darkening corrections are based. High quality angular diameters
for these stars will also lead to more accurate physical diameter measurements and effective temperature determinations.
Paper Details
Date Published: 21 July 2010
PDF: 8 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 77343L (21 July 2010); doi: 10.1117/12.858213
Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)
PDF: 8 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 77343L (21 July 2010); doi: 10.1117/12.858213
Show Author Affiliations
Ellyn K. Baines, U.S. Naval Research Lab. (United States)
J. Thomas Armstrong, U.S. Naval Research Lab. (United States)
J. Thomas Armstrong, U.S. Naval Research Lab. (United States)
Henrique R. Schmitt, U.S. Naval Research Lab. (United States)
Computational Physics, Inc. (United States)
Computational Physics, Inc. (United States)
Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)
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