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The quick answer is yes, we indeed see real changes in the structure of the jet. Longer answer; There are several factors that define how the jet of 3C 273 looks like: frequency of observation, telescope/array used, and real changes in structure. If we observe with interferometry technique from Earth, the higher the frequency - the better the resolution and ...


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If you're looking explicitly for radio-loud quasars, I'd recommend looking at a catalog of (mainly extragalactic) radio sources, rather than a catalog of quasars, given that only a small fraction of quasars are radio-loud. The Third Cambridge Catalogue of Radio Sources (VizieR link) might be a nice starting point, particularly given how many objects are ...


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