How Can Jets Survive MHD Instabilities?

Details How Can Jets Survive MHD Instabilities? How Can Jets Survive MHD Instabilities?

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.293..131b&link_type=abstract

Astrophysics and Space Science, v. 293, Issue 1, p. 131-138 (2004).

Astronomy and Astrophysics

Astrophysics

2

Jets, Mhd, Numerical

Scientific paper

We present the main findings of two recent studies using high-resolution MHD simulations of supersonic magnetized shear flow layers. First, a strong large-scale coalescence effect partially countered by small-scale reconnection events is shown to dominate the dynamics in a two-dimensional layer subject to Kelvin-Helmholtz (KH) instabilities. Second, an interaction mechanism between two different types of instabilities (KH and current-driven modes) is shown to occur in a cylindrical jet configuration embedded in an helical magnetic field. Finally, we discuss the implications of these results for astrophysical jets survival.

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