Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-03-09
Astrophys.J.648:1079-1089,2006
Astronomy and Astrophysics
Astrophysics
27 Pages, 9 Figures, Accepted to ApJ. For full (High) resolution figures, please see http://www.ism.ucalgary.ca/~pamela/papers
Scientific paper
10.1086/504146
We have obtained maps of the large scale outflow associated with the UCHII regionG5.89-0.39 in CO and 13CO (J=3-2), SiO (J=8-7,J=5-4), SO2 (13(2,12)-13(1,13)) and H13CO+(J=4-3). From these maps we have been able to determine the mass (3.3 M_sun), momentum (96 M_sun km/s), energy (3.5x10^{46} erg), mechanical luminosity (141 L_sun), and mass loss rate (~1x10^{-3}M_sun/yr) in the large scale outflow. The observationally derived parameters were used toguide 3D magnetohydrodynamic models of the jet entrained outflow. Through the combination of observations and simulations, we suggest that the large scale outflowmay be inclined by approximately 45 deg to the line of sight, and that the jet entraining the observed molecular outflow may have been active for as little as 1000 years, half the kinematic age of the outflow.
Francesco James Di
Klaassen P. D.
Ouyed Rachid
Plume Rene
von Benda-Beckmann Alexander M.
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