Extended radio emission and the nature of blazars

Details Extended radio emission and the nature of blazars Extended radio emission and the nature of blazars

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...294..158a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 294, July 1, 1985, p. 158-182.

Astronomy and Astrophysics

Astronomy

210

Astronomical Maps, Bl Lacertae Objects, Blazars, Extragalactic Radio Sources, Quasars, Radio Astronomy, Radio Galaxies, High Resolution, Histograms, Morphology

Scientific paper

The VLA has been used at 20 cm to map all 23 of the 54 confirmed blazars listed in the Angel and Stockman review paper that had not been mapped before at high resolution. In addition, data on most of the previously mapped blazars have been reprocessed in order to achieve higher dynamic range. Extended emission has been detected associated with 49 of the 54 objects. The extended radio emission has been used to test the hypothesis that blazars are normal radio galaxies and radio quasars viewed along the jet axes. It is found that blazars have substantial extended power, consistent with this hypothesis. The ratio of core to extended radio emission has been studied as a possible indicator of viewing aspect or beaming intensity.

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