Extragalactic sources with very asymmetric radio structure - VLA and MERLIN observations

Details Extragalactic sources with very asymmetric radio structure - VLA and MERLIN observations Extragalactic sources with very asymmetric radio structure - VLA and MERLIN observations

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989japa...10..203s&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 10, June 1989, p. 203-235.

Astronomy and Astrophysics

Astrophysics

19

Extragalactic Radio Sources, Radio Spectra, Very Large Array (Vla), Angular Resolution, Galactic Structure, Radio Emission

Scientific paper

Fifteen sources were observed with high angular resolution and good surface brightness sensitivity at radio frequencies using the VLA and MERLIN. The results suggest that the relativistic beaming of the hot-spot emission may play a significant role in the observed brighness asymmetry. It is found that velocities must be in the 0.2-0.8-c range in order to explain the apparently one-sided sources within the relativistic beaming framework. The possibility that the lobe which is observed to the south of the jet in 3C273 is the counter lobe viewed in projection is consideed.

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