Image Details
Caption: Figure 11.
Left panel: the discriminant χ2 as a function of effective temperature for the first three radial modes. The parameters (Teff, L) are taken from the lines of constant frequency 4.4415 day−1. Model atmospheres with [m/H] = −0.3 and ξt = 2 km s−1 were adopted. Vertical lines indicate the range of Teff derived from spectroscopy. Right panel: the same values of χ2 plotted as a function of the corresponding luminosities.
© 2026. The Author(s). Published by the American Astronomical Society.