Light curve and amplitude spectra of 2MASS J11120327-7637034. Left panels: corresponding light curve (black points) and a model (coloured lines), while right panels: corresponding amplitude spectra. The frequencies used in the model are marked with a filled (pulsation) or open (rotation) triangle. Top panel: TESS light curve and the model for rotational variability (red line) calculated from F3 and F5. Middle panel: TESS light curve after removing the rotational signal. Also shown is the pulsation model (blue line) calculated from F1, F3, and F4. Bottom panel: residuals after subtracting all five frequencies.