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Title:
The dynamical importance of magnetic fields in beam models of radio galaxies
Authors:
Bicknell, G. V.; Henriksen, R. N.
Affiliation:
AA(Mt. Stromlo and Siding Spring Observatory, Canberra, Australia), AB(Kingston, Queen's University, Kingston, Ontario, Canada)
Publication:
Astrophysical Letters, vol. 21, no. 1, 1980, p. 29-34.
Publication Date:
00/1980
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL MODELS, INTERSTELLAR MAGNETIC FIELDS, PLASMA JETS, RADIO GALAXIES, ACTIVE GALAXIES, CYLINDRICAL PLASMAS, MAGNETOHYDRODYNAMIC FLOW, OSCILLATIONS, PLASMA DIFFUSION
Comment:
A&AA ID. AAA028.158.200
Bibliographic Code:
1980ApL....21...29B

Abstract

Attention is drawn to the dynamical importance of magnetic fields in beam models of the jets emerging from active galaxies. It is shown that lateral expansion of a jet can generate an azimuthal field which is capable of partially collimating the plasma flow. Long wavelength variations in the NGC-315 beam are interpreted as oscillations induced by the competing magnetic stress and thermal pressure.

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Database: Astronomy
Physics
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