Abstract
The appearance of superluminal radio knots follows drops in the X-ray flux in the FR1 radio galaxy 3C 120 and possibly the FR2 source 3C 111. This corresponds in a very general way to the behavior of the X-ray binary GRS 1915 + 105, but the light curves of the microquasar are much richer in detail. Starting in 2003.7, the character of the radio and X-ray light curves of 3C 120 changed, perhaps signaling a new stage of activity. I discuss here what one might expect when a microquasar is scaled up to AGN dimensions, and compare this with what we see in 3C 120. There is a mismatch between expectations and observations.
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Marscher, A.P. (2005). Are 3C 120 and other active galactic nuclei overweight microquasars?. In: Maccarone, T.J., Fender, R.P., Ho, L.C. (eds) Astrophysics and Space Science. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4085-7_5
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DOI: https://doi.org/10.1007/1-4020-4085-7_5
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