Hubble Space Telescope Imaging of the Narrow-Line Region of NGC 4151
Hubble Space Telescope Imaging of the Narrow-Line Region of NGC 4151
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DOI：
10.1086/173292
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发表时间：
1993-11
期刊：
影响因子：
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通讯作者：
I. Evans;Z. Tsvetanov;G. Kriss;H. Ford;S. Caganoff;A. Koratkar
中科院分区：
文献类型：
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作者：
I. Evans;Z. Tsvetanov;G. Kriss;H. Ford;S. Caganoff;A. Koratkar
我们利用哈勃太空望远镜上的行星照相机获得了NGC 4151核心的高空间分辨率[O III] λ5007和Hα λ6563+[N II] λλ6548, 6583图像。几乎所有的Hα λ6563+[N II] λλ6548, 6583的发射都来自一个未解析的核点源。[O III] λ5007图像将窄线区域分解为多个发射线云，分布在双锥形结构中，顶点与中心点源重合，投影开口角为75°±10°，投影轴线沿P.A.方向60°/240°±5°。[O III] λ5007发射的位置角度与核VLBI射电源的延伸方向一致
We have used the Planetary Camera aboard the Hubble Space Telescope to obtain high spatial resolution [O III] λ5007 and Hα λ6563+[N II] λλ6548, 6583 images of the nucleus of NGC 4151. Almost all of the Hα λ6563+[N II] λλ6548, 6583 emission arises from an unresolved nuclear point source. The [O III] λ5007 image resolves the narrow-line region into a number of emission-line clouds distributed in a biconical structure with apices coincident with a central point source, a projected opening angle of 75°±10°, and a projected axis oriented along P.A. 60°/240°±5°. The position angle of the [O III] λ5007 emission is aligned with the extension of the nuclear VLBI radio source