Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..429..121m&link_type=abstract
Numerical Modeling of Space Plasma Flows, Astronum-2009, proceedings of a conference held 29 June through 3 July 2009 in Chamoni
Astronomy and Astrophysics
Astrophysics
Scientific paper
Observations of astrophysical jets and theoretical arguments suggest a transverse stratification with two components induced by intrinsic features of the central engine (accretion disk + black hole). We study two-component jet dynamics for an inner fast low density jet, surrounded by a slower, denser, extended jet. We investigate for the first time this two-component jet evolution with very high resolution in 2.5D and 3D. We demonstrate that two-component jets with high kinetic energy flux contribution from the inner jet are subject to the development of a relativistically enhanced, rotation-induced Rayleigh-Taylor type instability. This instability induces strong mixing between both components, decelerating the inner jet and leading to overall jet decollimation. The 3D simulation confirms the dominance of the non-axisymmetric character of this novel explanation for sudden jet deceleration. We note that it can explain the radio source dichotomy as a direct consequence of the efficiency of the central engine in launching the inner jet component. We argue that the FRII/FRI transition, interpreted in our two-component jet scenario, occurs when the relative kinetic energy flux of the inner to the outer jet exceeds a critical ratio.
Keppens Rony
Meliani Zakaria
No associations
LandOfFree
Relativistic Two-component Jet Evolutions in 2D and 3D does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Relativistic Two-component Jet Evolutions in 2D and 3D, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relativistic Two-component Jet Evolutions in 2D and 3D will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-773333