Asteroseismology of the High-amplitude delta Scuti Star EH Librae
Researchers used ground and space observations to perform asteroseismology on EH Lib, a High-amplitude Delta Scuti star. They analyzed light curves to find pulsation frequencies ($f_0=11.3105$ day$^{-1}$) and a period change rate of $(5.4 imes 10^{-9}) ext{ yr}^{-1}$. Theoretical models confirmed that the observed period change is due to stellar evolution, yielding parameters like a mass of $1.555 M_{\odot}$ and an age of $1.46 imes 10^9$ years. This study expands the sample of HADS stars.