ANGULAR DIAMETERS OF THE HYADES GIANTS MEASURED WITH THE CHARA ARRAY

作者：Boyajian Tabetha S^*; McAlister Harold A; Cantrell Justin R; Gies Douglas R; ten Brummelaar Theo A; Farrington Chris; Goldfinger P J; Sturmann Laszlo; Sturmann Judit; Turner Nils H; Ridgway Stephen

来源：Astrophysical Journal, 2009, 691(2): 1243-1247.

DOI：10.1088/0004-637X/691/2/1243

• infrared: stars
• stars: fundamental parameters
• techniques: interferometric

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 100 K is now possible from interferometric angular diameters of stars.

• 出版日期2009-2-1