Jets in extragalactic radio sources

Details Jets in extragalactic radio sources Jets in extragalactic radio sources

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984sci...225..677d&link_type=abstract

Science (ISSN 0036-8075), vol. 225, Aug. 17, 1984, p. 677-682.

Astronomy and Astrophysics

Astronomy

8

Extragalactic Radio Sources, Gas Jets, Astronomical Maps, Flow Velocity, Galactic Nuclei, Magnetohydrodynamic Flow, Radio Emission, Radio Galaxies, Supersonic Flow

Scientific paper

Observations now require that there be a continuous supply of energy to the giant extragalactic radio sources. These observations also suggest that this energy input may be in the form of streams or jets of gas emanating from the centers of galaxies and quasi-stellar objects. Current data indicate that the large-scale jet structures are not moving with relativistic speeds, as previously proposed. Slow-moving jets, which possess turbulent interiors and are dominated by relatively cool gas, can account for the observed jet properties at optical and radio wavelengths. Extremely small-scale jets observed adjacent to the central energy source may or may not be in relativistic motion.

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