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The Combined Effects of Magnetic Fields and Rotation on the Acceleration of Jets: A Quasi-One-Dimensional MHD Model

Published online by Cambridge University Press:  19 July 2016

Theodoros Koupelis
Theodoros Koupelis*
Affiliation:
Department of Physics and Astronomy University of Alabama Tuscaloosa, AL 35487-0324

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Using a quasi–one-dimensional MHD model for narrow jets (which we develop by projecting the system of the ideal MHD equations onto the jet axis) we examine the relative importance of the combined effects of rotation and magnetic fields upon the acceleration of matter in jets. We also examine the relative importance of the gas pressure and the gravitational field of the source on the flow and the position of the three critical points (Alfvén, slow and fast magnetosonic). The model, being semi-analytic, allows us to easily extract the relevant physical parameters, explore extreme ranges of these parameters, find the parameter range over which outflows are possible, and identify the physical consequences of different assumptions.

Type
8. The Role of Magnetic Fields in Radio Source Jets and Extended Radio Lobes
Information
Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 439 - 440
Copyright
Copyright © Kluwer 1990 

References

Biretta, J. A., Moore, R. L., and Cohen, M. H. 1986, Ap. J. , 308, 93.Google Scholar
Hardee, P. E., Owen, F. N., and Cornwell, T. J. 1988, in Active Galactic Nuclei: Proc. Georgia State University Conf. , ed. Miller, H. R. and Wiita, P. J. (Berlin: Springer-Verlag), p. 347.Google Scholar
Mundt, R., Brugel, E. W., and Bührke, T. 1987, Ap. J. , 319, 275.CrossRefGoogle Scholar
Parker, E. N. 1963, Interplanetary Dynamical Processes (New York: Wiley).Google Scholar
Vermeulen, R. C., Schilizzi, R. T., Icke, V., Fejes, I., and Spencer, R. E. 1987, Nature , 328, 309.Google Scholar