GAS CLOUD KINEMATICS NEAR THE NUCLEUS OF NGC-4151

We report early observations with Space Telescope Imaging Spectrometer (STIS) of the nuclear region of NGC 4151. Direct images in [O II] and [O III] and slitless medium-dispersion spectral images of the H beta to [O III] region were obtained. A slitless UV spectral image was take n of the C IV 1550 Angstrom region. We present radial velocities and l ine ratios of similar to 40 clouds resolved in the narrow-line region (NLR). The kinematics suggest outflow within a biconical region about the nucleus, centered on the radio axis and viewed near the edge of th e cones. A few high-velocity clouds are seen that do not fit this simp le picture. Line ratios indicate that the NLR gas is photoionized by t he central continuum source and that there may be a density gradient i n the NLR. These observations are being followed by an extensive STIS program on NGC 4151.