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arXiv 2007.14670astro-ph.GAastro-ph.HE
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在Fermi-LAT星表中寻找Blazar候选者中的活动星系核

Searching for misaligned active galactic nuclei among blazar candidates in the Fourth Fermi-LAT catalog

G. Chiaro, G. La Mura, A. Dominguez, S. Bisogni

摘要:

具有耀变体性质的射电噪声源,但其喷流并不直接指向观测者的方向,是最有趣的伽马射线发射体类别之一。这些源被称为错位活动星系核(MAGN)。了解MAGN的性质有助于加深对耀变体能学的认识。我们寻找新的MAGN候选人之间的剩余的耀变体的不确定类型的费米大面积望远镜(LAT)检测到使用的方法的基础上表征其无线电形态。我们确定了七个与伽马射线源有关的新候选者。它们的特征与带有偏离的相对论性喷流的源一致,该喷流符合MAGN的定义。

英文摘要:

Radio-loud sources with blazar-like properties, but having a jet that does not directly point in the direction of the observer are among the most interesting classes of gamma-ray emitters. These sources are known as Misaligned Active Galactic Nuclei (MAGN). Understanding MAGN properties is useful to improve the knowledge of blazar energetics. We searched for new MAGN candidates among the remaining blazars of uncertain type detected by the Fermi Large Area Telescope (LAT) using a methodology based on characterizing their radio morphology. We identified seven new candidates associated with gamma-ray sources. Their features are consistent with a source with a misaligned relativistic jet consistent with the definition of MAGN.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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