On the Intergalactic Media Densities, Dynamical Ages of Some Powerful Radio Sources and Implications

In this paper, analytical methods have been used to develop mathematical relation for estimating intergalactic media densities, and dynamical ages of some powerful radio sources. Using simple linear regression analysis, we obtain an estimate of the density of intergalactic media in which these radio sources are domiciled. Result shows that the difference in the densities of intergalactic media and those of the interstellar media is staggering. The implication of this result is that while the compact steep spectrum sources are besieged by dense ambient gasses, these larger and more powerful radio sources are characterized by less dense ambient media. Moreover, we find their age estimates to be in the order of≈1011 yr which shows that these powerful sources are old sources. This suggestively implies that they have evolved in power radiation over years to become more powerful sources according to the power-law function of the form,Pbol~T2.