KINEMATICS OF THE [O-III]-EMITTING GAS IN THE 1-ARCSECOND CIRCUMNUCLEAR CORE OF THE SEYFERT-GALAXY NGC-1068

The velocities of [O III] emitting ionized gas clouds observed in the collimated outburst in the nuclear core of Seyfert galaxy NGC 1068 were measured by means of a speckle spectrograph attached to the 6 m Telescope. The north-east cloud showing the velocity of -460 km s-1 with respect to the center is located at a distance 0.34" from the central condensation of 0.3" size. The south-west component, located at 0.33", has a speed of +420 km s-1. The positions of the clouds coincide with radio components on the VLA 1,3 cm radio map. The brightest [O III] line emitting component, corresponding to the central cloud of the radio map, shows a radial velocity of 200 km s-1 at the distance 0.2" = 15 pc from the centre. The estimated mass at this distance indicates the presence of a very massive nucleus.