论文标题

Seyfert星系中的化学丰度-V。在Agn电离轴外发现了震动的发射

Chemical abundances in Seyfert galaxies -- V. The discovery of shocked emission outside the AGN ionization axis

论文作者

Riffel, R. A., Dors, O. L., Armah, M., Storchi-Bergmann, T., Feltre, A., Hagele, G. F., Cardaci, M. V., Ruschel-Dutra, D., Krabbe, A. C, Perez-Montero, E., Zakamska, N. L., Freitas, I. C.

论文摘要

我们在三个发光塞弗特星系的内部KPC中提供了电子温度的地图:MRK 79,MRK 348和MRK 607在110-280 PC的空间分辨率下从Gemini GMOS-IFU观测中获得。我们研究了活跃星系中电子温度的分布,发现在8000到> 30000 K范围内的温度在范围内变化。由于气体流出引起的冲击在观察到的MRK 79和MRK 348的温度分布中起重要作用,而标准光电离心模型在MRK 79和MRK 348中的衍生温度均可转化为MRK 607。电离轴,可以很容易地观察到冲击,因为AGN辐射场被核灰尘圆环屏蔽。这也表明,即使电离锥狭窄,电击也可能是较宽的角度。

We present maps for the electron temperature in the inner kpc of three luminous Seyfert galaxies: Mrk 79, Mrk 348, and Mrk 607 obtained from Gemini GMOS-IFU observations at spatial resolutions of 110-280 pc. We study the distributions of electron temperature in active galaxies and find temperatures varying in the range from 8000 to >30000 K. Shocks due to gas outflows play an important role in the observed temperature distributions of Mrk 79 and Mrk 348, while standard photoionization models reproduce the derived temperature values for Mrk 607. In Mrk 79 and Mrk 348, we find direct evidence for shock-ionization with overall orientation orthogonal to the ionization axis, where shocks can be easily observed as the AGN radiation field is shielded by the nuclear dusty torus. This also indicates that even when the ionization cones are narrow, the shocks can be much wider-angle.

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