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TESS photometry of the eclipsing δ Scuti star AI Hydrae

TESS photometry of the eclipsing δ Scuti star AI Hydrae

AI Hya has been known as an eclipsing binary with a monoperiodic $δ$ Sct pulsator. We present the results from its {\it TESS} photometry observed during Sector 7. Including our five minimum epochs, the eclipse timing diagram displays the apsidal motion with a rate of $\dotω$ = 0.075$\pm$0.031 deg year$^{-1}$, …