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首页> 外文期刊>The Astrophysical journal >MODELING THE Fe?K LINE PROFILES IN TYPE I ACTIVE GALACTIC NUCLEI WITH A COMPTON-THICK DISK WIND
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MODELING THE Fe?K LINE PROFILES IN TYPE I ACTIVE GALACTIC NUCLEI WITH A COMPTON-THICK DISK WIND

机译:用COMPTON厚盘风模拟I型活动银河系核中的Fe?K线剖面

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摘要

We have modeled a small sample of Seyfert galaxies that were previously identified as having simple X-ray spectra with little intrinsic absorption. The sources in this sample all contain moderately broad components of Fe?K-shell emission and are ideal candidates for testing the applicability of a Compton-thick accretion disk wind model to active galactic nucleus (AGN) emission components. Viewing angles through the wind allow the observer to see the absorption signature of the gas, whereas face-on viewing angles allow the observer to see the scattered light from the wind. We find that the Fe?K emission line profiles are well described with a model of a Compton-thick accretion disk wind of solar abundances, arising tens to hundreds of gravitational radii from the central black hole. Further, the fits require a neutral component of Fe?Kα emission that is too narrow to arise from the inner part of the wind, and likely comes from a more distant reprocessing region. Our study demonstrates that a Compton-thick wind can have a profound effect on the observed X-ray spectrum of an AGN, even when the system is not viewed through the flow.
机译:我们对塞弗特星系的一个小样本进行了建模,该样本先前被确定为具有简单X射线光谱且固有吸收很少。该样品中的所有来源均含有适度广泛的Fe?K壳发射成分,并且是测试康普顿厚积吸盘风模型对活动星系核(AGN)发射成分的适用性的理想候选者。透过风的视角可使观察者看到气体的吸收特征,而面对面的视角则可使观察者看到来自风的散射光。我们发现,Fe?K发射线的轮廓用太阳丰度的康普顿厚积盘风模型很好地描述了,该模型由中央黑洞产生数十到数百个引力半径。另外,拟合需要Fe 2 Kα发射的中性成分太窄而不能从风的内部产生,并且可能来自更远的后处理区域。我们的研究表明,即使未通过流动观察系统,康普顿厚厚的风也可能对AGN的X射线光谱产生深远影响。

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