Using the Ca II lines in T Tauri stars to infer the abundance of refractory elements in the innermost disk regions

Marbely Micolta, Nuria Calvet, Thanawuth Thanathibodee +5

We present a study of the abundance of calcium in the innermost disk of 70 T Tauri stars in the star-forming regions of Chamaeleon I, Lupus and Orion OB1b. We use calcium as a prox…