Bending of radio trails by galactic winds and rotation |
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Authors: | Valtaoja Esko |
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Institution: | (1) Nordita, Copenhagen, Denmark;(2) Department of Physical Sciences, University of Turku, Finland |
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Abstract: | We study the kinds of distorted radio structures likely to be produced by the combination of slingshot mechanism, galaxy rotation, and nonradial gas flows. Since all deviations from simple radial symmetry must in the slingshot scenario be produced by passive motion of the thermally confined synchrotron emitting plasma, the dynamics of the ambient medium together with the radial motion of the ejected black holes completely determine the overall structure and evolution of the radio lobes and jets. Numerical calculations show that many commonly observed basic morphological types result naturally from the assumed mechanism. In particular, very nonsymmetric, strongly-bent sources, small sources with Z-symmetry, and jets which are initially straight and then bend suddenly over large angles, are common. Passive bending may also became important in beam models, resulting in strong distortions of the jets and lobes. |
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