Application of an X-Ray Clumpy Torus Model (XCLUMPY) to 10 Obscured Active Galactic Nuclei Observed with Suzaku and NuSTAR
Application of an X-Ray Clumpy Torus Model (XCLUMPY) to 10 Obscured Active Galactic Nuclei Observed with Suzaku and NuSTAR
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DOI：
10.3847/1538-4357/ab96bc
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发表时间：
2020-05
期刊：
影响因子：
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通讯作者：
A. Tanimoto;Y. Ueda;H. Odaka;S. Ogawa;S. Yamada;T. Kawaguchi;K. Ichikawa
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文献类型：
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作者：
A. Tanimoto;Y. Ueda;H. Odaka;S. Ogawa;S. Yamada;T. Kawaguchi;K. Ichikawa
我们应用XCLUMPY，一个来自活动星系核（AGN）中的星团的X射线谱模型，对10个模糊AGN的宽带X射线谱进行了观测，这10个活动星系核都是用朱雀和努斯塔观测的。Ichikawa等人用CLUMPY程序分析了这些活动星系核的红外光谱。由于XCLUMPY采用与CLUMPY相同的团分布，因此我们可以直接比较从X射线光谱和红外光谱获得的环面参数。从红外光谱（σIR）确定的环面角宽度系统地大于从X射线数据（σX）;差异（）与从X射线光谱确定的倾斜角相关。这些结果可以解释的贡献，从尘埃极地外流观测到的红外线通量，这变得更加显着，在更高的倾角（更多的边视图）。的比的氢柱密度的V-波段消光线的视线吸收器显示了一个大的分散（101 dex）周围的银河系的值，这表明一个显着的一部分活动星系核有丰富的尘埃环核环境。
We apply XCLUMPY, an X-ray spectral model from a clumpy torus in an active galactic nucleus (AGN), to the broadband X-ray spectra of 10 obscured AGNs observed with both Suzaku and NuSTAR. The infrared spectra of these AGNs were analyzed by Ichikawa et al. with the CLUMPY code. Because XCLUMPY adopts the same clump distribution as that in the CLUMPY, we can directly compare the torus parameters obtained from the X-ray spectra and those from the infrared spectra. The torus angular widths determined from the infrared spectra (σIR) are systematically larger than those from the X-ray data (σX); the difference ( ) correlates with the inclination angle determined from the X-ray spectrum. These results can be explained by the contribution from dusty polar outflows to the observed infrared flux, which becomes more significant at higher inclinations (more edge-on views). The ratio of the hydrogen column density to the V-band extinction in the line-of-sight absorber shows a large scatter (≃1 dex) around the Galactic value, suggesting that a significant fraction of AGNs have dust-rich circumnuclear environments.