Speaker
Description
We present the sub-pc scale molecular absorption studies in the circumnuclear region of the radio galaxy NGC 1052. Utilizing the KVN multi-frequency receiving system and the FPT technique, our KVN observations at mm bands spatially have resolved the molecular absorptions against a two-sided nuclear structure. The absorbing molecular clouds are concentrated on the receding jet and the nuclear components. It implies that the molecular clouds form in a circumnuclear torus surrounding the supermassive black hole (SMBH). Moreover, our KVN observations have detected a broad absorption feature over 400 km/s in velocity, thank to the wideband recording system. The broad absorption profile could trace complex kinematics in the vicinity of the SMBH, such as inflow, outflow, turbulence and so on.
