Cooling flows and the stability of radio jets

Details Cooling flows and the stability of radio jets Cooling flows and the stability of radio jets

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327...66s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 1, 1988, p. 66-81.

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41

Elliptical Galaxies, Galactic Clusters, Interstellar Matter, Radio Galaxies, Radio Jets (Astronomy), X Ray Sources, Computational Fluid Dynamics, Gas Pressure, Interstellar Gas, Radio Sources (Astronomy), Transonic Flow, X Ray Astronomy

Scientific paper

Recent X-ray observations of elliptical galaxies show that they contain significant quantities of hot gas, which probably form cooling flows. The authors consider the effects which these cooling flows can have on the propagation of radio jets. Under many conditions, these cooling flows will have sonic radii at which the flows become transonic. It is concluded that the radio jets are not disrupted at cooling flow sonic radii in most cases. However, the authors discuss several specific radio sources in which the small-scale radio structure is consistent with jet disruption at the cooling flow sonic radius. For the cases in which the jets are not disrupted, they suggest that either the radio jets are slow and heavy (v very low c) on these scales, or that very little of the material in the cooling flows reaches the sonic radius.

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