论文标题
解码巨大的外层次无线电源
Decoding the giant extragalactic radio sources
论文作者
论文摘要
定义为> 0.7 MPC的巨型无线电源（GRS）是宇宙中最大的单个对象，并且可以与星系（GRGS）和类星体（GRQ）相关联。它们对于理解射电星系和类星体的演变至关重要，它们的大小从PC到MPC量表的范围也很重要，并且也是对环境的宝贵探测。这些无线电大声的活性银河核（RLAGN）在小尺度上与宿主星系的星际介质和GRSS的大尺度内或层间培养基相互作用。在过去的几年中，随着几项新的和敏感的调查，已知的GRS数量增加了许多倍数，这引起了该领域的兴趣。这篇评论文章总结了我们基于近五十年的研究对这些来源的当前理解，并讨论了平方公里阵列（SKA）在解决一些杰出问题方面的重要性。
Giant radio sources (GRSs) defined to be > 0.7 Mpc are the largest single objects in the Universe and can be associated with both galaxies (GRGs) and quasars (GRQs). They are important for understanding the evolution of radio galaxies and quasars whose sizes range from pc to Mpc scales and are also valuable probes of their environment. These radio-loud active galactic nuclei (RLAGN) interact with the interstellar medium of the host galaxy on small scales and the large-scale intracluster or intergalactic medium for the GRSs. With several new and sensitive surveys over the last few years, the number of known GRSs has increased many fold which has led a resurgence of interest in the field. This review article summarises our current understanding of these sources based on nearly five decades of research and discusses the importance of the Square Kilometer Array (SKA) in addressing some of the outstanding questions.
