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Two-and-one-half dimensional models of radio jets

  • VI. Radio Observations and Modeling
  • Conference paper
  • First Online:
Active Galactic Nuclei

Part of the book series: Lecture Notes in Physics ((LNP,volume 307))

Abstract

A numerical model is used to follow the two-dimensional shell of a three-dimensional radio jet. This model, in the spirit of previous work of Wiita and Siah, invokes a new computer code to allow internal pressure of the jet fluid to be taken as a tensor, allowing for bulk motion of the internal relativistic gas and azimuthal symmetry is no longer assumed. Three-dimensional effects of two kinds have been modeled: bending in a “wind” resulting from motion of the host galaxy through an intergalactic medium; and stability of the beam cross-sectional shape.

Results of the two-dimensional cases confirm and strengthen earlier inferences that hydrodynamics alone is incapable of accounting for observed jet collimation. Results on jet bending suggest, once again, that non-hydrodynamic effects must be invoked to explain some observations. With respect to beam cross-section, intricate oscillatory motions have been observed, some of which appear to be unstable and potentially disruptive.

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Author information

Authors and Affiliations

  1. Department of Physics, University of Pennsylvania, 19104, Philadelphia, Pennsylvania

    Josh Mitteldorf

  2. Department of Physics and Astronomy, Georgia State University, 30303, Atlanta, Georgia

    Paul J. Wiita

Authors
  1. Josh Mitteldorf
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  2. Paul J. Wiita
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Editor information

H. Richard Miller Paul J. Wiita

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© 1988 Springer-Verlag

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Mitteldorf, J., Wiita, P.J. (1988). Two-and-one-half dimensional models of radio jets. In: Miller, H.R., Wiita, P.J. (eds) Active Galactic Nuclei. Lecture Notes in Physics, vol 307. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-19492-4_227

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  • DOI: https://doi.org/10.1007/3-540-19492-4_227

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-19492-7

  • Online ISBN: 978-3-540-39304-7

  • eBook Packages: Springer Book Archive

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