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Outflows and Turbulence in Young Stellar Clusters — An Observer's View

Published online by Cambridge University Press:  27 April 2011

Héctor G. Arce
Héctor G. Arce*
Affiliation:
Department of Astronomy, Yale University, P.O. Box 208101, New Haven CT 06520 email: [email protected]
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Abstract

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Recent numerical studies have focused their interest on the impact outflows have on the cloud's turbulence. The contradictory results obtained by these studies indicate that it is essential for observers to provide the required data to constrain the models. Here we discuss the impact of outflows on the environment surrounding clusters of young stellar objects, from an observer's point of view. We have conducted several studies of outflows in different active star-forming regions. In all cases it is clear that outflows have the power to sustain the observed turbulence in the gas surrounding protostellar clusters. We investigate whether there is a correlation between outflow strength and star formation efficiency, as predicted by numerical simulations, for six different regions in the Perseus molecular cloud complex. We argue that results of other recent studies that use CO line maps to study the turbulence driving length should not be used to discard outflows as major drivers of turbulence in clusters.

Keywords

stars: formationstars: pre–main-sequenceISM: jets and outflowsturbulence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S270: Computational Star Formation , May 2010 , pp. 287 - 290
Copyright
Copyright © International Astronomical Union 2011

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