GGD 37: AN EXTREME PROTOSTELLAR OUTFLOW

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/726/1/L1· OSTI ID:21454867

Green, J D ^[1]; Watson, D M; Forrest, W J; Kim, K H ^[2]; Bergin, E ^[3]; Maret, S ^[4]; Melnick, G; Tolls, V ^[5]; Sonnentrucker, P; Sargent, B A ^[6]; Raines, S N ^[7]

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1. Department of Astronomy, University of Texas at Austin, 1 University Station C1400, Austin, TX 78712 (United States)
2. Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627 (United States)
3. Department of Astronomy, University of Michigan, 500 Church Street, 830 Dennison Building, Ann Arbor, MI 48109 (United States)
4. Laboratoire d'Astrophysique de Grenoble, BP 53, F-38041 Grenoble Cedex 9 (France)
5. Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States)
6. Space Telescope Science Institute, Baltimore, MD (United States)
7. Department of Astronomy, University of Florida, Gainesville, FL (United States)

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{sup -1}. The presence of an extended photoionization or collisional ionization region indicates that GGD 37 is a highly unusual protostellar outflow.

• OSTI ID: 21454867
• Journal Information: Astrophysical Journal Letters, Vol. 726, Issue 1; Other Information: DOI: 10.1088/2041-8205/726/1/L1; ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
COSMOLOGICAL MODELS
EMISSION
HERBIG-HARO OBJECTS
PHOTOIONIZATION
PROTOSTARS
IONIZATION
MATHEMATICAL MODELS