论文标题
X射线光度/群集丰富性关系的出现
The emergence of the X-ray luminosity/cluster richness relation for radio galaxies
论文作者
论文摘要
合并更有可能在密集组或簇中的想法，以及这样的事件导致冷气流到黑色孔上的假设，这表明活跃银河系核的辐射效率与环境丰富度之间存在直接关系。但是，观察越来越多地挑战了这一和其他基本期望。例如，越来越多的证据表明，近乎伊德丁顿的物体和环境丰富度之间存在逆趋势。最近的工作被射电星系子组分解，最近的工作探索了低激发射线星系与Fanaroff-Riley II喷气形态（FRII Lergs）和其他射电星系之间的联系。我们通过对最近发现的FR0射电星系的讨论进行讨论，并展示如何将它们适合在射电宽银河系的一生中，但事实上过渡状态下，与该作品接触。我们描述了如何理解观察到的X射线光度/群集丰富性关系是关于喷射盘连接性质的基本相关性。
The idea that mergers are more likely in dense groups or clusters coupled with the assumption that such events lead to cold gas flows onto black holes, suggests a direct relationship between the radiative efficiency of an active galactic nucleus and environmental richness. Observations, however, increasingly challenge this and other basic expectations. Mounting evidence, for example, shows an inverse trend between near-Eddington accreting objects and environmental richness. Broken down by radio galaxy subgroup, recent work has explored connections between low excitation radio galaxies with Fanaroff-Riley II jet morphology (FRII LERGs) and other radio galaxies. We make contact with that work by adding a discussion of the recently discovered FR0 radio galaxies and show how to fit them in a picture in which FRII LERGs are not initial nor final phases in the lifetime of a radio galaxy, but de facto transition states. We describe how to understand the observed X-ray luminosity/cluster richness relation as a fundamental correlation on the nature of the jet-disk connection.
