Multiple hotspots in radio galaxies

Details Multiple hotspots in radio galaxies Multiple hotspots in radio galaxies

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...140..148v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 140, no. 1, Nov. 1984, p. 148-154.

Astronomy and Astrophysics

Astronomy

18

Galactic Radiation, Radio Galaxies, Radio Sources (Astronomy), Collimation, Magnetohydrodynamic Flow, Morphology

Scientific paper

The properties of multiple hotspots in a sample of radio sources are investigated. The morphologies and energetics of the more diffuse "secondary" hotspots do not support the hypothesis, common to both the beam and the slingshot models of radio sources, that they are simply remnants of previous activity now observed in the compact "primary" hotspots. If the secondary hotspots are instead formed by directed outflow of plasma from the primary hotspots, their properties can be better understood. Moderately collimated ejection along the axis of a supermassive object embedded in the primary hotspot is suggested to be the underlying mechanism.

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