Faint Object Spectrograph Spectroscopy of Resolved Structure in the Nucleus of NGC 1068

August 1991 • 1991ApJ...377L...9C

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.

Abstract • We report the results of FOS spectroscopy of the continuum peak of NGC 1068 in the wavelength range 2200-7000 A. 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^-1^. However, we do not detect the broad Hβ emission observed in polarized light. This implies that the continuum peak is not the mirror which reflects light from the hidden Seyfert 1 nucleus. It could possibly contribute some of the reflected light, but the equivalent width of the Hβ BLR line, if present at all, is much weaker than expected from the ground-based nuclear polarized-flux spectrum.

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Lee Armus

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