FOS SPECTROSCOPY OF RESOLVED STRUCTURE IN THE NUCLEUS OF NGC-1068

被引:29
作者
CAGANOFF, S
ANTONUCCI, RRJ
FORD, HC
KRISS, GA
HARTIG, G
ARMUS, L
EVANS, IN
ROSENBLATT, E
BOHLIN, RC
KINNEY, AL
机构
[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106
[2] SPACE TELESCOPE SCI INST,BALTIMORE,MD 21218
[3] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093
关键词
GALAXIES; INDIVIDUAL; (NGC-1068); NUCLEI; SEYFERT; ULTRAVIOLET; SPECTRA;
D O I
10.1086/186104
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the results of FOS spectroscopy of the continuum peak of NGC 1068 in the wavelength range 2200-7000 angstrom. 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 H-beta 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 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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页码:L9 / L12
页数:4
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