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FOS spectroscopy of resolved structure in the nucleus of NGC 1068

Authors :
Caganoff, S
Kriss, G. A
Antonucci, R. R. J
Ford, H. C
Hartig, G
Source :
Astrophysical Journal, Part 2 - Letters. 377
Publication Year :
1991
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1991.

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.

Subjects

Subjects :
Astrophysics

Details

Language :
English
ISSN :
0004637X
Volume :
377
Database :
NASA Technical Reports
Journal :
Astrophysical Journal, Part 2 - Letters
Notes :
NAS5-29293
Publication Type :
Report
Accession number :
edsnas.19910062696
Document Type :
Report
Full Text :
https://doi.org/10.1086/186104