Combined-array images of an archetypal compact steep-spectrum source, 3C147

Details Combined-array images of an archetypal compact steep-spectrum source, 3C147 Combined-array images of an archetypal compact steep-spectrum source, 3C147

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.250..650z&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 250, June 1, 1991, p. 650-653.

Astronomy and Astrophysics

Astronomy

19

Astronomical Spectroscopy, Quasars, Radio Sources (Astronomy), Astronomical Models, Relativistic Electron Beams, Very Long Base Interferometry

Scientific paper

An EVN map at 1.67 GHz and combined EVN-MERLIN maps at 1.67 and 5 GHz of the compact steep-spectrum radio source 3C147 are presented. The maps reveal three dominant extended regions and a bright core. The structure cannot be readily explained with the standard relativistic beaming model. A sharp bend in the VLBI jet and the overall distorted structure may be caused by the interaction of the jet with ambient gas, though a multiengine source, each with its own jet cannot be ruled out. Physical parameters of the knots along the VLBI jet and the age of 3C147 have been estimated.

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