Radio galaxies are typically associated with an active galactic nucleus (AGN) in the centre of an elliptical or sometimes spiral galaxy, that emits a powerful jet of particles extending over tens to hundreds of kiloparsecs (kpc) or even up to several megaparsecs (Mpc). Interacting with the surrounding intergalactic medium (IGM) these jets form a variety of shapes, lobes or plumes, depending on the initial energy and the properties of the medium through which they travel. Sometimes, the produced shapes make it difficult to associate the radio galaxy to a known class of objects. 4C70.19 is a great example.
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