Program: GS-2023A-Q-403

The K2 mission has monitored hundreds of T-Tauri stars allowing to construct their light curves with high precision and cadence. The light curves have been classified into different classes according to their morphology and temporal variability. The photometric variations would be the result of different processes that would be taking place in each class. However, it is not yet clear for example, if the photometric variations correlate with characteristics observed in the spectra of these stars. Different types of correlations may reinforce the proposed mechanism for the photometric variations, or point towards other possible scenarios. We propose to carry out a spectroscopy monitoring (throughout the 2023A semester), of 6 T-Tauri stars with GMOS-S in the LongSlit mode. This can help to consolidate which mechanism (or mechanisms) is responsible for the characteristics observed in the light curves and explain correlations among photometric and spectroscopic variabilities. Understanding this is important to improve our description of the early stages of star formation and how it would affect the subsequent formation of a planetary system in the circumstellar disc.