A Precessing Jet in the NGC2264G Outflow

We (Teixeira et al., 2008) present IRAC imaging of the NGC 2264 G protostellar outflow region. A jet in the red (eastern) outflow lobe is clearly detected in all four IRAC bands, and is shown to continuously extend over the entire length of the red outflow lobe as seen in CO. The easternmost part of the jet exhibits multiple changes of direction, which we find can be largely explained by a slowly precessing jet. The changes in the jet direction may be sufficient to account for a significant fraction of the broadening of the outflow lobe, as observed in CO emission.