HST IMAGING OF THE INNER 3 ARCSECONDS OF NGC-1068 IN THE LIGHT OF [OIII]LAMBDA-5007

被引:140
作者
EVANS, IN
FORD, HC
KINNEY, AL
ANTONUCCI, RRJ
ARMUS, L
CAGANOFF, S
机构
[1] JOHNS HOPKINS UNIV,DEPT PHYS & ASTRON,BALTIMORE,MD 21218
[2] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106
关键词
GALAXIES; INDIVIDUAL; (NGC-1068); NUCLEI; SEYFERT;
D O I
10.1086/185951
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have used the Planetary Camera on board the Hubble Space Telescope to obtain a high spatial resolution [O III] lambda-5007 image of the nucleus of NGC 1068. This image resolves the narrow-line region into several distinct clouds arranged in an apparently conical geometry. The individual emission-line regions appear to be resolved, with sizes approximately 0.1"-0.2" (approximately 6-12h pc; H0 = 100h-1 km s-1 Mpc-1). There is a strong apparent correspondence between the 1.3 cm radio "triple" structure and several of the [O III] lambda-5007 clouds, although there are also bright emission-line clouds for which there are no radio counterparts. Based on the combined [O III] lambda-5007 and radio continuum morphology, we conclude that the hidden nucleus is located in the southern radio component, together with the H2O megamaser.
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页码:L27 / &
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