Advances in Astronomy and Space Physics, Volume 2, Issue 2 (2012)

Simulating peculiar X-shaped extragalactic radio sources

D. A. Lacatus1, A. R. Paraschiv1, O. Tesileanu1,2

1Research Center for Atomic Physics and Astrophysics, Faculty of Physics, University of Bucharest, Str. Atomistilor 405, 077125 Magurele - Ilfov, Romania
2Horia Hulubei National Institute of Physics and Nuclear Engineering, Magurele, Romania

Abstract
Peculiar morphologies have been observed among extragalactic radio sources, which present important sideways features that are yet to be explained. After obtaining the region in the parameter space for which the intended lateral extensions appear, further 2D simulations using PLUTO code were performed. For some selected sets of parameters the effect of resolution on the simulated morphology, and the effect of a toroidal magnetic field on the propagation of the simulated jet in the stratified medium, were considered.

Keywords:
jets, x-shaped, radio galaxy