Program: GN-2022B-Q-213

The remarkable T Tauri triple system has become a laboratory for understanding the early evolution of young multiple stars. Optical H-alpha imaging of the southern outflows from T Tau reveals periodic mass ejections. Correlation of the outflow kinematics with historical orbit timing of the T Tau South binary (T Tau S, period 27 yr) suggests an exciting prospect: the launch of the prior four southern outflow ejections may be nearly contemporaneous with the periastron passage of the close binary. Hence, the T Tauri triple system provides a unique opportunity to understand large-scale mass accretion variations and the launch of a predicted new outflow caused by the upcoming binary periastron passage in early 2023. With 8.9 hours of Gemini time, we propose to acquire measurements of the time-variable accretion and outflow characteristics in the T Tau S binary before and during the periastron timeframe.