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American Astronomical Society, Astrophysical Journal, 2(691), p. 1243-1247, 2009

DOI: 10.1088/0004-637x/691/2/1243

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Angular Diameters of the Hyades Giants Measured with the CHARA Array

Journal article published in 2008 by Tabetha S. Boyajian ORCID, Theo A. ten Brummelaar, Harold A. McAlister, Justin R. Cantrell, Douglas R. Gies, A. Theo, Theo A. ten Brummelaar, Chris Farrington, Pj J. Goldfinger, Laszlo Sturmann, Judit Sturmann, Nils H. Turner, Others, and Stephen Ridgway
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

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 angular diameters for these stars are all less than 2%, and in combination with additional observable quantities, we determine the effective temperatures, linear radii and absolute luminosities for each of these stars. Additionally, stellar masses are inferred from model isochrones to determine the surface gravities. These data show that a new calibration of effective temperatures with errors well under 100K is now possible from interferometric angular diameters of stars. ; Comment: Accepted for publication in The Astrophysical Journal