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Angular Diameters of the G Subdwarf Cassiopeiae A and the K Dwarfs Draconis and HR 511 from Interferometric Measurements with the CHARA Array
Tabetha S. Boyajian, Harold A. McAlister, Ellyn K. Baines +13
Using the longest baselines of the CHARA Array, we have measured the angular diameter of the G5 V subdwarf Cas A, the first such determination for a halo population star. We co…
The Search for Stellar Companions to Exoplanet Host Stars Using the CHARA Array
Ellyn K. Baines, Harold A. McAlister, Theo A. ten Brummelaar +4
Most exoplanets have been discovered via radial velocity studies, which are inherently insensitive to orbital inclination. Interferometric observations will show evidence of a stel…
CHARA Array Measurements of the Angular Diameters of Exoplanet Host Stars
Ellyn K. Baines, Harold A. McAlister, Theo A. ten Brummelaar +5
We have measured the angular diameters for a sample of 24 exoplanet host stars using Georgia State University's CHARA Array interferometer. We use these improved angular diameters…
Radial Velocities of Six OB Stars
T. S. Boyajian, D. R. Gies, E. K. Baines +7
We present new results from a radial velocity study of six bright OB stars with little or no prior measurements. One of these, HD 45314, may be a long-period binary, but the veloci…
Direct Measurement of the Radius and Density of the Transiting Exoplanet HD 189733B with the CHARA Array
E. K. Baines, G. T. van Belle, T. A. ten Brummelaar +5
We have measured the angular diameter of the transiting extrasolar planet host star HD 189733 using the CHARA O/IR interferometric array. Combining our new angular diameter of 0.37…
CHARA Array K'-band Measurements of the Angular Dimensions of Be Star Disks
D. R. Gies, W. G. Bagnuolo, E. K. Baines +22
We present the first K'-band, long-baseline interferometric observations of the northern Be stars gamma Cas, phi Per, zeta Tau, and kappa Dra. The measurements were made with multi…