Physics
Scientific paper
Nov 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.288..149k&link_type=abstract
Nature, vol. 288, Nov. 13, 1980, p. 149, 150.
Physics
23
Electron-Positron Plasmas, Extragalactic Radio Sources, Plasma Jets, Quasars, Relativistic Electron Beams, Electron Plasma, Galactic Nuclei, Interstellar Magnetic Fields, Relativistic Plasmas
Scientific paper
It is proposed that the narrow emission bridges observed to connect hot spots within extended extragalactic double radio sources and the center of an intermediate galaxy consist of beams of extremely relativistic electrons and positrons. Calculations of the power streaming in the jets and the speed at which the lobes of double sources separate are presented which indicate beam particle velocities in excess of 10 to the 9th cm/sec. Independent observations also suggesting relativistic bulk velocities of the beam material are indicated, including observations of intermittent superluminal expansion, one-sided jets, extreme tail lengths, hot spot locations, beam bending and jet stability. Thermodynamic and energy partition arguments are then presented for the presence of electrons and positrons in the beams and the near-absence of ions.
Gopal-Krishna
Kundt Wolfgang
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