THE GEOMETRY OF MASS OUTFLOWS AND FUELING FLOWS IN THE SEYFERT 2 GALAXY MRK 3
THE GEOMETRY OF MASS OUTFLOWS AND FUELING FLOWS IN THE SEYFERT 2 GALAXY MRK 3
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DOI：
10.1088/0004-6256/139/3/871
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发表时间：
2009-12
期刊：
影响因子：
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通讯作者：
D. Crenshaw;S. Kraemer;H. Schmitt;Yara L. Jaffé;R. Deo;N. Collins;T. C. Fischer
中科院分区：
文献类型：
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作者：
D. Crenshaw;S. Kraemer;H. Schmitt;Yara L. Jaffé;R. Deo;N. Collins;T. C. Fischer
基于哈勃太空望远镜的观测，我们研究了Seyfert-2星系MRK-3中已分辨的发射线区域和内部尘埃/气体盘。我们证明了横跨∼4kpc的扩展窄线区是由活动星系核辐射的电离双锥和内盘的交集定义的，而内盘并不与大尺度恒星盘共面。与窄线区域(NLR)相比，这种交叉导致ENLR的位置和打开角度不同。ENLR中的许多发射线弧线似乎是圆盘中尘埃通道的延续，支持这种几何形状。NLR由横跨中央活动星系核650PC的外流发射线结点组成，呈向后S的形状，这种形状可能是由气体的旋转引起的，也可能是在活动星系核打开后靠近被电离的原子核的原始燃料流的踪迹。
We present a study of the resolved emission-line regions and an inner dust/gas disk in the Seyfert 2 galaxy Mrk 3, based on Hubble Space Telescope observations. We show that the extended narrow-line region (ENLR), spanning ∼4 kpc, is defined by the intersection of the ionizing bicone of radiation from the active galactic nucleus (AGN) and the inner disk, which is not coplanar with the large-scale stellar disk. This intersection leads to different position and opening angles of the ENLR compared to the narrow-line region (NLR). A number of emission-line arcs in the ENLR appear to be continuations of dust lanes in the disk, supporting this geometry. The NLR, which consists of outflowing emission-line knots spanning the central ∼650 pc, is in the shape of a backward S. This shape may arise from rotation of the gas, or it may trace the original fueling flow close to the nucleus that was ionized after the AGN turned on.