A Doppler image of the weak T Tauri star V410 Tau

We have monitored the weak-lined T Tauri star V410 Tau spectroscopically for six nights in 1992. We detected periodic line-profile variations that are used to obtain a Doppler image of this star, the first of a pre-main sequence T Tauri star. Inverse solutions from three moderately-strong absorption lines show consistent surface inhomogeneities of the effective temperature distribution of up to 1200 K cooler and at least 500 K hotter than the nominal photospheric temperature of 4400 K. Our maps thus verify the proposed existence of hot spots on weak-lined T Tauri stars. All features are evident at low and very high latitudes even covering the rotational pole but not a cool polar cap-like spot as seen previously for several other active stars