Tracing the Bipolar Outflow from Orion Source I
نویسندگان
چکیده
Using CARMA, we imaged the 87 GHz SiO v=0 J=2-1 line toward Orion-KL with 0.45 angular resolution. The maps indicate that radio source I drives a bipolar outflow into the surrounding molecular cloud along a NE–SW axis, in agreement with the model of Greenhill et al. (2004). The extended high velocity outflow from Orion-KL appears to be a continuation of this compact outflow. High velocity gas extends farthest along a NW–SE axis, suggesting that the outflow direction changes on time scales of a few hundred years. Subject headings: ISM: individual(Orion-KL) — ISM: jets and outflows — masers — stars: formation
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