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\subsection{Black holes and Active Galactic Nuclei}  It is widely accepted that there is a supermassive black hole (SMBH ) (with a mass ranging from $10^5$ – $10^(10)$ $ 10^10 $  solar masses) at the centre of most galaxies , though the there is some uncertainty about how these black holes are formed. Black holes are regions of space-time exhibiting strong gravitational pull. According to (A Loeb) a black hole is the end product from the complete gravitational collapse of a material object, such as a massive star. The black hole is responsible for the mass concentration at the centre of each galaxy. Black holes found at the centre of galaxies are referred to as Super Massive Black Holes (SMBH). SMBH grow by merging with other black holes or by accretion of matter which is the process of attracting mater via a gravitational force leading to a growth of the attracting agent. Radio galaxies are galaxies dominated by radio emissions from jets stemming from SMBHs. AGN are the small, dense and luminous components of the centres of galaxies as represented in figure 3 and figure 4. The majority of their energy is derived from gravitational potential energy as opposed to nuclear sources within stars.