Details

Autor(en) / Beteiligte

• Gracia, J.
• Vlahakis, N.
• Tsinganos, K.

Titel

Jet simulations extending radially self-similar magnetohydrodynamics models

Ist Teil von

• Monthly notices of the Royal Astronomical Society, 2006-03, Vol.367 (1), p.201-210

Ort / Verlag

23 Ainslie Place, Edinburgh EH3 6AJ, UK. Telephone 226 7232 Fax 226 3803: Blackwell Science Ltd

Erscheinungsjahr

2006

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• We perform a numerical simulation of magnetohydrodynamics (MHD) radially self-similar jets, whose prototype is the Blandford & Payne analytical example. The final steady state that is reached is valid close to the rotation axis and also at large distances above the disc where the classical analytical model fails to provide physically acceptable solutions. The outflow starts with a subslow magnetosonic speed, which subsequently crosses all relevant MHD critical points and corresponding magnetosonic separatrix surfaces. The characteristics are plotted together with the Mach cones and the superfast magnetosonic outflow satisfies MHD causality. The final solution remains close enough to the analytical one, which is thus shown to be topologically stable and robust for various boundary conditions.