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arXiv · 1012.0029

GGD 37: An Extreme Protostellar Outflow

J. D. Green·D. M. Watson·E. Bergin·S. Maret·G. Melnick·P. Sonnentrucker·V. Tolls·B. A. Sargent·W. J. Forrest·K. H. Kim·S. N. Raines
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Abstract

We present the first Spitzer-IRS spectral maps of the Herbig-Haro flow GGD 37 detected in lines of [Ne III], [O IV], [Ar III], and [Ne V]. The detection of extended [O IV] (55 eV) and some extended emission in [Ne V] (97 eV) indicates a shock temperature in excess of 100,000 K, in agreement with X-ray observations, and a shock speed in excess of 200 km s-1. The presence of an extended pho- toionization or collisional ionization region indicates that GGD 37 is a highly unusual protostellar outflow.

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J. D. Green, D. M. Watson, E. Bergin, S. Maret, G. Melnick, P. Sonnentrucker, V. Tolls, B. A. Sargent, W. J. Forrest, K. H. Kim, S. N. Raines. 2010-11-30. GGD 37: An Extreme Protostellar Outflow. https://doi.org/10.1088/2041-8205%2F726%2F1%2Fl1

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