Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377l...9c&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. L9-L12.
Astronomy and Astrophysics
Astrophysics
36
Galactic Nuclei, Hubble Space Telescope, Seyfert Galaxies, Spectrographs, Ultraviolet Spectroscopy, Balmer Series, Emission Spectra, Faint Objects, H Beta Line, Line Spectra
Scientific paper
The results of FOS spectroscopy of the continuum peak of NGC 1068 in the wavelength range 2200-7000 A are reported. Detailed analysis reveals the emission lines to be complex in shape and to consist of a number of different velocity components. Both the Balmer lines and the strong forbidden lines have a contribution from a component with full width at half-maximum on the order of 2200 km/s. However, the broad H-beta emission observed in polarized light is not detected. This implies that the continuum peak is not the mirror which reflects light from the hidden Seyfert I nucleus. It could possibly contribute some of the reflected light, but the equivalent width of the H-beta BLR line, if present at all, is much weaker than expected from the ground-based nuclear polarized-flux spectrum.
Antonucci Robert R. J.
Armus Lee
Bohlin Ralph Charles
Caganoff Saul
Evans Ian N.
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