Pressure collimation of supersonic radio jets

Details Pressure collimation of supersonic radio jets Pressure collimation of supersonic radio jets

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269...81k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 269, June 1, 1983, p. 81-93. Research supported by the Natural Sciences and

Physics

Fluid Dynamics

12

Galactic Structure, Radio Jets (Astronomy), Relativistic Particles, Supersonic Jet Flow, Astronomical Models, Collimation, Electron Pressure, Equations Of State, Fluid Dynamics, Particle Acceleration

Scientific paper

The transversely homologous steady state models of radio jets are treated as three-component mixtures (protons, electrons, and relativistic electrons). The jets may be both relativistically hot and macroscopically relativistic. A new fit is found for the main jet in NGC 315 with a model dominated by relativistic-electron pressure, and an alternative method for deducing the external equilibrium pressure required to collimate a jet is demonstrated. This new method does not require an a priori parameterized pressure law to be assumed. The maximum 'curvature' which a homologous, pressure-confined jet may have is discussed, and distinguishing behavior of macroscopically relativistic jets and of cold jets is deduced.

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