Program: GN-2017B-Q-25

One of the most outstanding and not completely understood process involved in the formation of stars is the appearance of jets and collimated bipolar outflows in the earliest stages of formation. Using NIRI at Gemini-North, we propose to observe the [FeII], H2 1-0 S(1), H2 2-1 S(1), and CO 2-0 (bh) lines, the broad bands J, H, and Ks, and the H- and K-continuum filters towards two massive young stellar objects (MYSOs): G029.8620-00.044 (our priority source) and G212.0641-00.7395. The goal of these observations is to have a complete and useful near-IR imaging of the circumstellar environments of these MYSOs. Using these data we can study the physical and chemical processes that occur in the early stages of the massive star formation. In addition, by comparing these new data with UKIDSS data obtained in 2006 we will be able to perform a study of the proper motion of the jets and/or of the different features associated with them, which allows us to constrain theoretical models of the jet dynamics. This kind of studies are very important to advance in the knowledge of the earliest processes involved in the star formation.