论文标题

关于Seyfert星系,Bl Lacertae物体和平整无线电类星体的演变

On the Evolution of Seyfert galaxies, BL Lacertae objects and Flat-spectrum radio quasars

论文作者

Iyida, Evaristus U., Eze, Christian I., Odo, Finbarr C.

论文摘要

在过去的几十年中,由于AGN子类观察角而被认为是不同的,因此在过去几十年中,喷射活性银河核(AGN)的进化序列的概念受到了挑战。在本文中,我们收集了1108个Blazars(472个平面无线电,FSRQ和636个Bl lacertae物体,Bl lacs)和120个Seyfert Galaxies(SGS),并具有可用的redshifts和speptralies和Specriies in corm in cormers in Complas in Compriies in Complas in complas和segma ray corms in complas in Complas in Commab。通过进化探索他们可能的统一。发现SGS和Blazar子类的相对差异大致相同,这意味着它们具有进化关系。 We discovered from the results of a two-dimensional Kolmogorov-Smirnov (K.S.) test, that the probabilities (p) for the composite spectral indices: optical-X-ray radio-X-ray radio-optical and X-ray-gamma-ray to come from the same parent population is p, less than 0.05, implying that the null hypothesis cannot be rejected, thus, supports SGs-BL Lacs-FSRQs进化序列.......................................................................................................................................... SGS与Blazar子类具有进化关系的预测。

The concept of the evolutionary sequence of jetted active galactic nuclei (AGNs) has been challenged in the last few decades since AGN subclasses are considered to be different due to their viewing angle. In this paper, we collected a sample of 1108 blazars (472 flat-spectrum radio quasars, FSRQs and 636 BL Lacertae objects, BL Lacs) and 120 Seyfert galaxies (SGs) with available redshifts and spectral properties in radio, optical, X-ray, and gamma-ray bands in order to compare the properties of SGs and the blazar subclasses and also explore their possible unification through evolution. It is found that the ratio of the relative difference of SGs and the blazar subclasses are approximately the same implying that they have an evolutionary relationship. We discovered from the results of a two-dimensional Kolmogorov-Smirnov (K.S.) test, that the probabilities (p) for the composite spectral indices: optical-X-ray radio-X-ray radio-optical and X-ray-gamma-ray to come from the same parent population is p, less than 0.05, implying that the null hypothesis cannot be rejected, thus, supports SGs-BL Lacs-FSRQs evolutionary sequence................. These results agree with the prediction that SGs have an evolutionary relationship with the blazar subclasses.

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