Optical Properties of the jet in NGG 5128

Details Optical Properties of the jet in NGG 5128 Optical Properties of the jet in NGG 5128

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ojg..rept..143d&link_type=abstract

In ESA Opt. Jets in Galaxies p 143-144 (SEE N81-27993 18-88)

Computer Science

Centaurus Constellation, Light Emission, Plasma Jets, Radio Galaxies, Spectral Emission, Condensing, H Ii Regions, Interstellar Gas, Ionization, Line Spectra, Nitrogen, Velocity Distribution

Scientific paper

Observational work concerning the outer features, the inner jet and the amorphous gaseous component of NGC 5128 jet is reviewed. Some condensations have spectra which are similar to those observed in photoionized HII regions. The nitrogen NII line strengths are sufficiently great to rule out the possibility that the material is very metal-poor and therefore primordial in origin. Some knots have spectral properties which are quite distinct from those of normal photoionized HII regions. The velocity data still require clarification. All the available velocities of these features are smaller (i.e., less positive) than the systemic velocity of NGC 5128. The inner jet-like features align with the X-ray jet inferring a connection between the two. The peculiar emission seen in the outer jet and in the amorphous gaseous regions closer to the nucleus may result from the exposure of the material to the hot nonthermal nucleus.

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