Abstract
New observations, including both narrow-band imaging and long-slit spectroscopy, of the optical filaments in Centaurus A are presented. The line-emitting filaments which compose part of the well-known optical-jet are complex and highly structured at the limit of ground-based resolution. Variations in the surface brightness, line intensity ratios and the velocity field occur on spatial scales ∼ 100 pc. No evidence of [O III] λ5007 emission associated with either the inner jet or a possible counter jet are found. The emission line spectra of the filaments are very similar in character to those of the spatially extended nebulosities in more distant radio galaxies and radio quasars.
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