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
来源：
ASTROPHYSICAL JOURNAL | 1991年 / 377卷 / 01期
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.
引用
收藏
页码：L9 / L12
页数：4
相关论文
共 15 条
[1]   STUDY OF THE CLOSE ENVIRONMENT OF THE ACTIVE NUCLEUS IN NGC-1068 BY DECOMPOSITION OF [O-III] AND H-BETA EMISSION-LINE PROFILES [J].
ALLOIN, D ;
PELAT, D ;
BOKSENBERG, A ;
SARGENT, WLW .
ASTROPHYSICAL JOURNAL, 1983, 275 (02) :493-510
[2]   SPECTROPOLARIMETRY AND THE NATURE OF NGC-1068 [J].
ANTONUCCI, RRJ ;
MILLER, JS .
ASTROPHYSICAL JOURNAL, 1985, 297 (02) :621-632
[3]   ULTRAVIOLET INTER-STELLAR EXTINCTION TOWARD STARS IN THE ORION NEBULA AND TOWARD HD 147889 [J].
BOHLIN, RC ;
SAVAGE, BD .
ASTROPHYSICAL JOURNAL, 1981, 249 (01) :109-117
[4]   THE IMAGING PERFORMANCE OF THE HUBBLE SPACE TELESCOPE [J].
BURROWS, CJ ;
HOLTZMAN, JA ;
FABER, SM ;
BELY, PY ;
HASAN, H ;
LYNDS, CR ;
SCHROEDER, D .
ASTROPHYSICAL JOURNAL, 1991, 369 (02) :L21-&
[5]   HST IMAGING OF THE INNER 3 ARCSECONDS OF NGC-1068 IN THE LIGHT OF [OIII]LAMBDA-5007 [J].
EVANS, IN ;
FORD, HC ;
KINNEY, AL ;
ANTONUCCI, RRJ ;
ARMUS, L ;
CAGANOFF, S .
ASTROPHYSICAL JOURNAL, 1991, 369 (02) :L27-&
[6]  
JUNKKARINEN VT, 1991, BAAS, V22, P1283
[7]  
KINNEY AL, 1990, FOS TARGET ACQUISITI
[8]   PARAMETER-ESTIMATION IN X-RAY ASTRONOMY [J].
LAMPTON, M ;
MARGON, B ;
BOWYER, S .
ASTROPHYSICAL JOURNAL, 1976, 208 (01) :177-190
[9]  
LYNDS CR, 1991, AP J, V369, pL31
[10]  
MILLER JS, 1991, IN PRESS AP J
12