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Title:
FOS spectroscopy of resolved structure in the nucleus of NGC 1068
Authors:
Caganoff, S.; Antonucci, R. R. J.; Ford, H. C.; Kriss, G. A.; Hartig, G.; Armus, L.; Evans, I. N.; Rosenblatt, E.; Bohlin, R. C.; Kinney, A. L.
Affiliation:
AA(Johns Hopkins University, Baltimore, MD), AB(Johns Hopkins University, Baltimore, MD), AC(California, University, Santa Barbara), AD(Johns Hopkins University; Space Telescope Science Institute, Baltimore, MD), AE(Space Telescope Science Institute, Baltimore, MD)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. L9-L12. (ApJ Homepage)
Publication Date:
08/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
GALACTIC NUCLEI, HUBBLE SPACE TELESCOPE, SEYFERT GALAXIES, SPECTROGRAPHS, ULTRAVIOLET SPECTROSCOPY, BALMER SERIES, EMISSION SPECTRA, FAINT OBJECTS, H BETA LINE, LINE SPECTRA
DOI:
10.1086/186104
Bibliographic Code:
1991ApJ...377L...9C

Abstract

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.

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