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Measuring coverage of dark spots on cool stars is important in understandinghow stellar magnetic activity scales with the rotation rate and convection zonedepth. In this respect, it is crucial to infer surface magnetic patterns on Gand K stars, to reveal solar-like stellar dynamos in action. Molecular bandsserve as invaluable indicators of cool spots on the surfaces of stars, as theyplay a crucial role in enabling accurate assessments of the extent of spotcoverage across the stellar surface. Therefore, more reliable surface imagescan be obtained considering the inversion of atomic lines with molecular bands.In this context, we simultaneously carry out Doppler imaging (DI) using atomiclines as well as Titanium Oxide (TiO) band profiles of PW And (K2 V) and alsoinvestigate chromospheric activity indicators for the first time in theliterature, using the high-resolution spectra. The surface spot distributionobtained from the inversion process represents both atomic line and TiO-bandprofiles quite accurately. The chromospheric emission is also correlated withphotospheric spot coverage, except during a possible flare event during theobservations. We detect frequent flare activity, using TESS photometry. We alsointroduce a new open-source, Python-based DI code SpotDIPy that allowsperforming surface reconstructions of single stars using the maximum entropymethod. We test the code by comparing surface reconstruction simulations withthe extensively used DoTS code. We show that the surface brightnessdistribution maps reconstructed via both codes using the same simulated dataare consistent with each other.

First Chromospheric Activity and Doppler Imaging Study of PW And Using a New Doppler Imaging Code: SpotDIPy