
%0 Journal Article
%A J Tingay for the SHEVE team, Steven 
%T Centaurus A, The Core of the Problem
%J Australian Journal of Physics
%D 1994/10/01
%V 47
%N 5
%P 619-624
%K 
%R https://doi.org/10.1071/PH940619
%U https://www.publish.csiro.au/paper/PH940619 
%X The bright, peculiar elliptical galaxy Centaurus A (NGC 5128, PKS 1322-427) was one of the first extragalactic radio sources to be optically identified (Bolton et al 1949). At a distance of 4 Mpc, Centaurus A is the closest active radio galaxy and affords the highest linear imaging resolution (1 mas ~ 0·02 pc) and hence the best prospects for studying an active nucleus close to the central radio source. We present the results of multi-epoch, 8· 4-G Hz, very long baseline interferometry (VLBI), imaging observations of the nucleus made over the past three years. The nucleus possesses a core-jet structure where the inner portion of the jet shows apparent linear motion with a velocity substantially less than the speed of light. 
