论文标题
AGN并不那么酷：重新访问固有的AGN远红外光谱分布
AGNs are not that cool: revisiting the intrinsic AGN far-infrared spectral energy distribution
论文作者
论文摘要
我们研究了通过SED分解的42 $ z <0.5 $ z <0.5 $ z <0.5 $ z <0.5 $ z <0.5 $ z <0.5 $ z <0.5 $ z <0.5 $的红外（ir）带的活性银河核（AGNS）的固有光谱能量分布（SED）。我们通过将AGN IR模板库Siebenmorgen2015组合在一起，分解了42个类星体的SED，该库涵盖了众多的AGN参数空间和三个常用的Galaxy模板库。我们从最合适的结果中确定中位数AGN SED。我们的中位数AGN SED的Far-Far-Far（FIR）贡献明显小于Symeonidis等人的贡献。 2016年，但大致与Lyu等人的一致。 2017年。随着辐射仪的增加，Agn ir sed变得凉爽，这可能是由于更发光的AGN可能具有更强烈的辐射反馈以改变圆环结构和/或其Tori可能具有较高的金属性。我们的结论不取决于星系模板库的选择。但是，由于预测的多环芳族烃（PAH）发射线通量是星系模板依赖性的，因此应注意从PAH通量中衍生出星系火的贡献。
We investigate the intrinsic spectral energy distribution (SED) of active galactic nuclei (AGNs) at infrared (IR) bands with 42 $z < 0.5$ optically luminous Palomar Green survey quasars through SED decomposition. We decompose the SEDs of the 42 quasars by combining an AGN IR template library Siebenmorgen2015 that covers a wide range of the AGN parameter space with three commonly used galaxy template libraries. We determine the median AGN SED from the best-fitting results. The far-IR (FIR) contribution of our median AGN SED is significantly smaller than that of Symeonidis et al. 2016, but roughly consistent with that of Lyu et al. 2017. The AGN IR SED becomes cooler with increasing bolometric luminosity, which might be due to that more luminous AGNs might have stronger radiative feedback to change torus structures and/or their tori might have higher metallicities. Our conclusions do not depend on the choice of galaxy template libraries. However, since the predicted polycyclic aromatic hydrocarbon (PAH) emission line flux is galaxy template-dependent, cautions should be taken on deriving galaxy FIR contribution from PAH fluxes.
