The narrow-line region of high-luminosity active galactic nuclei

Details The narrow-line region of high-luminosity active galactic nuclei The narrow-line region of high-luminosity active galactic nuclei

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...410..534w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 410, no. 2, p. 534-542.

Astronomy and Astrophysics

Astrophysics

46

Active Galactic Nuclei, Luminosity, Quasars, Astronomical Models, Astronomical Spectroscopy, Emission Spectra, Hubble Space Telescope, Photoionization

Scientific paper

The HST's Faint Object Spectrograph and Kitt Peak ground instruments have been used to gather high S/N spectroscopic observations of seven radio-loud quasars; the resolutions obtained allow a separation of emission line broad and narrow components to be made. Attention is given to the relative weakness of the narrow UV lines, in contradiction to the predictions of dust-free photoionization models; there is not a single definite detection of a narrow UV line in any of the seven quasars. Two explanations of the observed reddening are discussed.

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