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14 papers · 1 filter
Angular Diameters of the Hyades Giants Measured with the CHARA Array
Tabetha S. Boyajian, Harold A. McAlister, Justin R. Cantrell +8
We present angular diameters of the Hyades giants, gamma, delta^1, epsilon, and theta^1 Tau from interferometric measurements with the CHARA Array. Our errors in the limb-darkened…
The Visual Orbit of the 1.1-day Spectroscopic Binary σ^2 Coronae Borealis from Interferometry at the CHARA Array
Deepak Raghavan, Harold A. McAlister, Guillermo Torres +11
We present an updated spectroscopic orbit and a new visual orbit for the double-lined spectroscopic binary σ^2 Coronae Borealis based on radial velocity measurements at the Oak Rid…
The Highly Eccentric Pre-Main Sequence Spectroscopic Binary RX J0529.3+1210
G. N. Mace, L. Prato, L. H. Wasserman +3
The young system RX J0529.3+1210 was initially identified as a single-lined spectroscopic binary. Using high-resolution infrared spectra, acquired with NIRSPEC on Keck II, we measu…
Adaptive Optics Photometry and Astrometry of Binary Stars. III. A Faint Companion Search of O-Star Systems
Nils H. Turner, Theo A. ten Brummelaar, Lewis C. Roberts +3
We present the results of an adaptive optics survey for faint companions among Galactic O-type star systems (V < 8) using the Advanced Electro-Optical System (AEOS) 3.6-meter teles…
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…
Preliminary Orbit of the Young Binary Haro 1-14c
G. H. Schaefer, M. Simon, L. Prato +1
Using the Keck Interferometer, we spatially resolved the orbit of the pre-main sequence binary, Haro 1-14c, for the first time. We present these interferometric observations along…