Tracing the Bipolar Outflow from Orion Source I

R. L. Plambeck; M. C. H. Wright; D. N. Friedel; S. L. Widicus Weaver; A. D. Bolatto; M. W. Pound; D. P. Woody; J. W. Lamb; S. L. Scott

doi:10.1088/0004-637x/704/1/l25

arXiv · 0909.2906

Tracing the Bipolar Outflow from Orion Source I

R. L. Plambeck·M. C. H. Wright·D. N. Friedel·S. L. Widicus Weaver·A. D. Bolatto·M. W. Pound·D. P. Woody·J. W. Lamb·S. L. Scott

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Abstract

Using CARMA, we imaged the 87 GHz SiO v=0 J=2-1 line toward Orion-KL with 0.45 arcsec 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.

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R. L. Plambeck, M. C. H. Wright, D. N. Friedel, S. L. Widicus Weaver, A. D. Bolatto, M. W. Pound, D. P. Woody, J. W. Lamb, S. L. Scott. 2009-09-16. Tracing the Bipolar Outflow from Orion Source I. https://doi.org/10.1088/0004-637x/704/1/l25

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