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首页> 外文期刊>The Astrophysical Journal. Supplement Series >Spectral survey of X-ray bright active galactic nuclei from the Rossi X-Ray Timing Explorer
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Spectral survey of X-ray bright active galactic nuclei from the Rossi X-Ray Timing Explorer

机译：罗西X射线定时探测器对X射线明亮的活跃银河核的光谱调查

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摘要

Using long-term monitoring data from the Rossi X-ray Timing Explorer (RXTE), we have selected 23 active galactic nuclei (AGNs) with sufficient brightness and overall observation time to derive broadband X-ray spectra from 3 to ?100 keV. Our sample includes mainly radio-quiet Seyferts, as well as seven radio-loud sources. Given the longevity of the RXTE mission, the greater part of our data is spread out over more than a decade, providing truly long-term average spectra and eliminating inconsistencies arising from variability. We present long-term average values of absorption, Fe line parameters, Compton reflection strengths, and photon indices, as well as fluxes and luminosities for the hard and very hard energy bands, 2-10 keV and 20-100 keV, respectively. We find tentative evidence for high-energy rollovers in three of our objects. We improve upon previous surveys of the very hard X-ray energy band in terms of accuracy and sensitivity, particularly with respect to confirming and quantifying the Compton reflection component. This survey is meant to provide a baseline for future analysis with respect to the long-term averages for these sources and to cement the legacy of RXTE, and especially its High Energy X-ray Timing Experiment, as a contributor to AGN spectral science.
机译：使用来自Rossi X射线定时资源管理器（RXTE）的长期监测数据，我们选择了23个活跃的银河核（AGN），它们具有足够的亮度和整体观察时间，可以得出3到100keV的宽带X射线光谱。我们的样本主要包括安静的塞弗特（Seyferts），以及七个无线电声源。考虑到RXTE任务的寿命，我们的大部分数据分布了十多年，提供了真正的长期平均频谱，并消除了因可变性而引起的不一致。我们给出了长期平均吸收值，Fe线参数，康普顿反射强度和光子指数，以及硬和非常硬能带（分别为2-10 keV和20-100 keV）的通量和光度。我们在三个对象中找到了高能翻转的初步证据。在准确性和灵敏度方面，特别是在确认和量化康普顿反射分量方面，我们改进了以前对非常硬的X射线能带的调查。此项调查旨在为这些源的长期平均值提供一个基准，以便将来进行分析，并巩固RXTE的传统，尤其是其高能X射线定时实验，作为AGN光谱科学的贡献者。

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