X形射电星系中的重启引擎
Restarting engine in an X-shaped radio galaxy
摘要：
J2018-556是一个X形的FR-I射电星系，它提供了一个独特的机会来讨论这类射电源中看到的扩展结构的形成场景。了解X形源结构的起源对射电星系模型以及黑洞-黑洞合并有重要意义。在我们对J2018-556的ATCA无线电连续观测的指导下，我们讨论了支持“翅膀”形成的证据，这是由于与宿主星系相关的不对称气体分布导致回流重新定向的结果。形成模型调用回流与不对称环境之间的相互作用似乎是X形射电源的首选模型，尽管X形FR-I射电源的明显发现。
英文摘要：
J2018-556, an X-shaped FR-I radio galaxy provides a unique opportunity to discuss the formation scenarios for the extended structures seen in this class of radio sources. An understanding of the origin of X-shaped source structures has important implications for radio galaxy models as well as black hole-black hole mergers. Guided by our ATCA radio continuum observations of J2018-556 we discuss evidence in support of 'wings' forming as a result of a redirection of backflows by asymmetric gas distribution associated with the host galaxy. Formation models invoking interaction between backflows with asymmetric environments seem the preferred model for X-shaped radio sources despite apparent discoveries of X-shaped FR-I radio sources.
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。
