The interaction of a YSO outflow with the surrounding molecular cloud core

Details The interaction of a YSO outflow with the surrounding molecular cloud core The interaction of a YSO outflow with the surrounding molecular cloud core

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008rmxaa..44..293c&link_type=abstract

Revista Mexicana de Astronomía y Astrofísica Vol. 44, pp. 293-300 (2008) (http://www.astroscu.unam.mx/~rmaa/)

Astronomy and Astrophysics

Astronomy

4

Ism: Jets And Outflows, Ism: Kinematics And Dynamics, Stars: Mass Loss, Stars: Pre-Main Sequence

Scientific paper

We present a thin shell, analytic model for an outflow ejected with an opening angle that increases as a function of time. This model predicts a cavity shape that broadens out with time, and pinches towards the outflow axis at a point that travels away from the outflow source. The motivation for this model is the set of observations of a bipolar cavity centered on Barnard 5 IRS 1 by Velusamy & Langer (1998), who suggest an interpretation for the observed structure in terms of a model such as the one that we have studied. We find that this observed structure could indeed be produced by an outflow of decreasing collimation as a function of time, provided that the mass loss rate has a value dot M0 ≈ 3×10-6 M&sun; yr-1.

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