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[O III] profile substructure in radio-quiet quasars
Astronomy & Astrophysics
  • C. Leipski, Ruhr-Universitat Bochum
  • N. Bennert, Ruhr-Universitat Bochum
Publication Date
Interactions between the radio jet and the optical emission of the narrow-line region (NLR) are a well known phenomenon in Seyfert galaxies. Here, we present the study of possible jet-NLR interactions in five radio-quiet PG quasars with double or triple radio structure. High spatial and spectral resolution observations were carried out in the H-[O III] 5007 wavelength range. In all cases, there is evidence for [O III] profile substructure (shoulders, subpeaks, blueshifted "broad'' components) with different clarity. To measure the velocity, line width, intensity, and location of these [O III] components, several Gaussians were fitted. Often, the substructures are more pronounced close to the radio lobes, suggestive of jet-NLR interactions. Our observations support the unification scheme in which radio-quiet quasars are assumed to be the luminous cousins of Seyfert galaxies.
Citation Information
C. Leipski and N. Bennert. "[O III] profile substructure in radio-quiet quasars" Astronomy & Astrophysics Vol. 448 Iss. 1 (2006) p. 165 - 169
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