Multiple hotspots in extragalactic radio sources

Details Multiple hotspots in extragalactic radio sources Multiple hotspots in extragalactic radio sources

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.313...34w&link_type=abstract

Nature (ISSN 0028-0836), vol. 313, Jan. 3, 1985, p. 34-36.

Astronomy and Astrophysics

Astronomy

66

Extragalactic Radio Sources, Plasma Jets, Radio Astronomy, Density Distribution, Pressure Distribution, Velocity Distribution

Scientific paper

Recent observations with sub-kpc resolution show that the hotspots in powerful extragalactic radio sources often exhibit internal double structure. One subcomponent is usually extremely compact, of size <1 kpc, whereas the other, which is more diffuse, often appears to point away from the smaller component and is usually further from the nucleus. The authors present a model of a jet with variable direction that is able to account for this structure, interpreting the compact subcomponent as the initial point of impact of the jet with the intergalactic medium and the more diffuse subcomponent as a "splatter-spot" formed by jet material deflected asymmetrically by the compact subcomponent.

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