The Propagation of Magneto-Centrifugally Launched Jets: I

Details The Propagation of Magneto-Centrifugally Launched Jets: I The Propagation of Magneto-Centrifugally Launched Jets: I

2000-03-03

arxiv.org/abs/astro-ph/0003052v1

Astronomy and Astrophysics

Astrophysics

42 pages, accepted by the ApJ

Scientific paper

10.1086/309298

We present simulations of the propagation of magnetized jets. This work differs from previous studies in that the cross-sectional distributions of the jets's state variables are derived from analytical models for magneto-centrifugal launching. The source is a magnetized rotator whose properties are specfied as boundary conditions. The jets in these simulations are considerably more complex than the ``top-hat''constant density etc. profiles used in previous work. We find that density and magnetic field stratification (with radius) in the jet leads to new behavior including the separation of an inner jet core from a low density collar. We find this {\it jet within a jet} structure, along with the magnetic stresses, leads to propagation behaviors not observed in previous simulation studies. Our methodology allows us to compare MHD jets from different types of sources whose properties could ultimately be derived from the behavior of the propagating jets.

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