GGD 37: An Extreme Protostellar Outflow

Details GGD 37: An Extreme Protostellar Outflow GGD 37: An Extreme Protostellar Outflow

2010-11-30

arxiv.org/abs/1012.0029v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

5 pages, 4 figures, accepted 17 Nov. 2010

Scientific paper

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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