Evidence for widely separated primary and secondary hotspots in 3C 171
Monthly Notices of the Royal Astronomical Society 283:2 (1996) 538-542
Abstract:
A multi-radio-frequency study of the unusual structure of the radio galaxy 3C 171 is presented. A spectral index study is used to make deductions about the origins of the plumes which emanate from the hotspots. Optical images are overlaid on radio maps which give support to the inference that the plumes are diverted backflow from the hotspots. Evidence is presented which supports the interpretation of the region of enhanced brightness in the north-west plume as a quasi-hotspot, and thus that there is a widely separated primary and secondary hotspot pair in 3C 171.Spectral index asymmetries in double radio sources and the unified model
Vistas in Astronomy 40:1 (1996) 179-184
Abstract:
A model is presented which reconciles the conflicting implications of the Garrington-Laing effect and the Liu-Pooley effect, which had caused difficulties for the projection model and hence for unified schemes. I also show that DPM asymmetries are significantly larger for quasars than for radio galaxies, adding further weight to the suggestion that quasars are closer to the line of sight. Copyright ©1996 Elsevier Science Ltd.A multi-radio-frequency study of a RQQ
IAU SYMP (1996) 185-186
New results from complete samples of faint radio galaxies and quasars
IAU SYMP (1996) 567-568
Radio source environments at redshifts > 0.5
IAU SYMP (1996) 321-322