Physics – Fluid Dynamics
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.310...33w&link_type=abstract
Nature (ISSN 0028-0836), vol. 310, July 5, 1984, p. 33-36.
Physics
Fluid Dynamics
50
Astronomical Models, Extragalactic Radio Sources, Fluid Dynamics, Plasma Jets, Radio Sources (Astronomy), Three Dimensional Models, Density Distribution, Flow Distribution, Galactic Nuclei, Intergalactic Media, Kelvin-Helmholtz Instability, Supersonic Jet Flow, Three Dimensional Flow
Scientific paper
The model in which ejection from extragalactic radio sources occurs in a quasi-continuous jet is combined with three-dimensional fluid-dynamical simulations of a supersonic jet in a cross-wind in order to study the formation of twin-tail sources through the motion of the active nucleus through the intracluster gas. Velocity vectors and density and pressure distributions in the jet are shown and discussed. The dynamic importance of the cocoon in radio-trail sources is addressed. Comparison of the simulation results with maps of radio-trail sources suggests that most of the radio emission probably occurs only in shocked jet material and not in the shocked intergalactic medium behind the bow shock.
Gull Stephen F.
Williams Anthony G.
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