论文标题
X射线块状圆环模型(XClumpy)在10个遮盖的活性银河核中使用Suzaku和Nustar观察到的活性银河核
Application of X-Ray Clumpy Torus Model (XCLUMPY) to 10 Obscured Active Galactic Nuclei Observed with Suzaku and NuSTAR
论文作者
论文摘要
我们将XClumpy(从活性银河核(AGN)中的块状圆环(AGN)中施加X射线光谱模型),宽带X射线光谱,该光谱在Suzaku和Nustar都观察到了10个遮盖的AGN。用块状代码分析了这些AGN的红外光谱。由于Xclumpy采用与团块中相同的结块分布,因此我们可以直接比较从X射线光谱和红外线的参数进行比较。根据红外光谱确定的圆环角宽度($σ_ {\ mathrm {ir}} $)在系统上大于X射线数据($σ_ {\ Mathrm {x}}}} $);差异($σ_{\ Mathrm {ir}} - σ_{\ Mathrm {x}} $)与从X射线频谱确定的倾斜角有关。这些结果可以通过尘土飞出到观察到的红外通量的贡献来解释,在较高的倾斜度(更多边缘视图)下,这变得更加重要。视线吸收器线中的氢柱密度和V波段灭绝的比率显示出大量散射($ \ simeq $ 1 dex)周围的银河值,这表明很大一部分AGN的AGN具有富含灰尘的环核环境。
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 with the CLUMPY code. Since 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 ones. The torus angular widths determined from the infrared spectra ($σ_{\mathrm{IR}}$) are systematically larger than those from the X-ray data ($σ_{\mathrm{X}}$); the difference ($σ_{\mathrm{IR}}-σ_{\mathrm{X}}$) 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 and V-band extinction in the line of sight absorber shows large scatter ($\simeq$1 dex) around the Galactic value, suggesting that a significant fraction of AGNs have dust-rich circumnuclear environments.