What name is given to a young, cool star (spectral class G, K, or M) that is ejecting gas into the interstellar medium?

Name: What name is given to a young, cool star (spectral class G, K, or M) that is ejecting gas into the interstellar medium?
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T Tauri stars are young, cool stars in the process of formation, characterized by their variability and the ejection of gas into the interstellar medium. These stars are in the early stages of their evolution, before they reach the main sequence phase.

What Name Is Given to a Young, Cool Star (Spectral