Subtraction of the synthetic composite spectrum (red line) generated by COMPO2 from the spectrum of TIC 43152097 observed on 28 October 2022 (black dots). In each panel, the residual spectrum is shown by the blue line. The chromospheric emission (bottom panel) in the Hα core of the primary and the secondary component, which has been integrated to provide , is shown by the hatched green and magenta areas, respectively. The Li Iλ6708 Å absorption lines of the two components (top panel) are marked with “P” and “S” in the residual spectrum.