Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986cajph..64..470f&link_type=abstract
(Conference on Jets from Stars and Galaxies, Toronto, Canada, June 24-27, 1985) Canadian Journal of Physics (ISSN 0008-4204), vo
Astronomy and Astrophysics
Astronomy
7
Astronomical Models, Elliptical Galaxies, Radio Galaxies, Radio Jets (Astronomy), Virgo Galactic Cluster, Mach Number, Pressure Distribution, Shock Waves, Steady Flow, Supersonic Jet Flow
Scientific paper
A model is presented to explain the observed positions of the knots in the jet of the radio source M87. It is supposed that the knots represent shocks in a supersonic fluid jet caused by a pressure imbalance between the jet and the surrounding medium. The positions of the knots are determined by the product of the jet's Mach number and radius, and by the variation in the external pressure, which brings about a reconfinement of the jet.
Falle Sam A. E. G.
Wilson Michael J.
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