Analytical and numerical studies of fluid instabilities in relativistic jets

Details Analytical and numerical studies of fluid instabilities in relativistic jets Analytical and numerical studies of fluid instabilities in relativistic jets

2006-02-08

arxiv.org/abs/astro-ph/0602182v1

Astronomy and Astrophysics

Astrophysics

Proceedings of Relativistic Astrophysics & Cosmology (Munchen, November 2005). 3 pages

Scientific paper

Relativistic outflows represent one of the best-suited tools to probe the physics of AGN. Numerical modelling of internal structure of the relativistic outflows on parsec scales provides important clues about the conditions and dynamics of the material in the immediate vicinity of the central black holes in AGN. We investigate possible causes of the structural patterns and regularities observed in the parsec-scale jet of the well known quasar 3C 273. We compare the model with the radio structure observed in 3C 273 on parsec scales using very long baseline interferometry (VLBI) and constrain the basic properties of the flow. Our results show that Kelvin-Helmholtz instabilities are the most plausible mechanism to generate the observed structures.

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