射电大声AGN中的相互作用和气体外流-射电喷流的破坏性和建设性影响
Interaction and gas outflows in radio-loud AGN - Disruptive and constructive effects of radio jets
摘要:
在过去的几年里,活动星系核(AGN)比以往任何时候都更受欢迎。利用它们来产生反馈效应的可能性,将有助于解决与星系形成和演化的分层方案有关的一些尚未解决的问题,这使得它们在理论家中特别受欢迎。活动星系核驱动的外流可能有不同的起源。在这里,我将集中讨论核活动的无线电噪声阶段(以及无线电等离子体喷流的存在)在星系演化中所起的作用。我将集中讨论无线电活动可能很重要的两个方面。第一个是探索与射电响亮星系相关的相对论等离子体射流是否可以提供一种有效的方法来产生具有与宿主星系演化相关的特征的气体流出。第二,是研究它们是否可以提供触发恒星形成的机制。
英文摘要:
In the last years, Active Galactic Nuclei (AGN) have become more popular than ever. The possibility of using them to produce feedback effects that would help solving some of the still open questions connected to the hierarchical scenario of galaxy formation and evolution, has made them particularly popular among theorists. AGN-driven outflows can have different origin. Here, I will concentrate on the role that the radio-loud phase of nuclear activity (and the presence of radio plasma jets) can play in the evolution of a galaxy. I will focus on two aspects in which radio activity could be important. The first is exploring whether relativistic plasma jet associated with radio-loud galaxies could provide an effective way to produce gas outflows with characteristics that can be relevant in the evolution of the host galaxy. The second, is to investigate whether they can provide a mechanism for the triggering of star formation.
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