Restarted activity in the 3C 328 radio galaxy

As a rule, both lobes of Fanaroff-Riley (FR) type-II radio sources are terminated with hotspots, but the 3C 328 galaxy is specimen an FR II-like object hotspot in only one lobe. A conceivable reason for such asymmetry that nucleus was temporarily inactive. There no energy transfer from it to during period quiescence, and so they began fade out. However, under assumption axis connecting two makes appreciable angle sky plane, hence considerably farther observer than other, observed at distinct stages evolution due light-travel lag. While far-side lobe still perceived as being II type hotspot, decay near-side already apparent. No jets visible VLA images, VLBA observations inverted-spectrum core component have revealed has jet sub-arcsecond length pointing towards shows evidence decay. Since always points near side, its orientation line scenario proposed here. The presence supports inference currently active; however, given fact short (∼200 pc projection), activity must restarted very recently. lower upper limits quiescent been calculated.