Outflow Evolution in Turbulent Clouds

Details Outflow Evolution in Turbulent Clouds Outflow Evolution in Turbulent Clouds

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.3013c&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #30.13; Bulletin of the American Astronomical Society, V

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We present 3D hydrodynamic simulations of the evolution of time-decaying protostellar outflows that are immersed in a turbulent background. These simulations were carried out using the AstroBEAR AMR MHD code. This work represents the first results in a program of “ecological studies” of star formation where the cloud, stars and outflows are viewed as a coherent interacting system. We isolate outflow-cloud feedback mechanisms by simulating the long-term evolution of extinct fossil outflow cavities as they are shredded and subsumed into their environment. We consider the deposition of energy and momentum from the outflow into the parent cloud via E(k) power spectra and globally integrated kinetic and thermal energies to quantify time dependent jet-cloud feedback process. These results are used to interpret observations of multiple outflow systems, including the long-term evolution and decay of the outflow sources.

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