Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.259..451v&link_type=abstract
Nature, vol. 259, Feb. 12, 1976, p. 451-454.
Astronomy and Astrophysics
Astronomy
53
Astronomical Maps, Galactic Clusters, Radio Sources (Astronomy), Astronomical Catalogs, Brightness, Energy Dissipation, Galactic Structure, High Energy Electrons, High Resolution, Particle Acceleration
Scientific paper
Two head-tail radio sources associated with the galaxies IC708 and IC711 have been detected in a high resolution study of the cluster of galaxies Abell 1314. The observations are consistent with the general form of the 'radio trail' model (Miley et al., 1972). Observations at 6 cm show the two galaxies to be active, implying that the nucleus is the energy supply. It is shown that the assumption that the relativistic electrons are accelerated within the optical galaxy rather than in the tail itself is inconsistent with observations of IC711, which indicate that the relativistic electrons radiating at 49 cm cannot propagate from the d nucleus to the end of the tail in the face of energy losses due to interaction with the magnetic field. The relativistic particles may be reaccelerated in the tail of IC711 itself or replenished from the intracluster medium.
Vallee Jacques P.
Wilson Andrew S.
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