Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105..769h&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 105, no. 3, p. 769-777.
Astronomy and Astrophysics
Astronomy
32
Galactic Clusters, Radio Astronomy, Radio Galaxies, Radio Spectra, Red Shift, Relic Radiation, Morphology, Polarization Characteristics, Radio Sources (Astronomy), Relativistic Electron Beams, X Rays
Scientific paper
Observations of extended source of low surface brightness appear as a 'relic' of a currently inactive radio galaxy. The largest dimension is approximately 1.6 Mpc, the fractional polarization is high, and the magnetic field direction appears to be coherent over scales of at least several hundred kpc. Polarization and morphologies of relics are distinct from those of cluster halos, due to the different environment provided by cluster cores compared to that encountered in the outer fringes of the hot gas distribution which produces X-ray emission.
Dewdney Peter E.
Harris Daniel E.
Stern C. P.
Willis George A.
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