论文标题
在酷核星系群集RXJ1720.1+2638中，最明亮的中央星系中的Sub-KPC无线电喷气机
Sub-kpc radio jets in the brightest central galaxy of the cool-core galaxy cluster RXJ1720.1+2638
论文作者
论文摘要
冷核星系簇RXJ1720.1+2638托管群集核心附近的延长无线电发射，称为Minihalo。这种发射的起源仍在争论中，一个难题是最明亮的中央星系中的超大质量黑洞是否正在积极为喷气机提供动力。在这里，我们提出了高分辨率的电子杂志观测值，清楚地表明存在亚KPC喷射。这可能对Minihalo发射的拟议起源有影响，这提供了相对论电子的持续来源，而不是过去的某个时候，如前所述，试图再现Minihalo-Onosting系统的观察性特征的模拟中所假设。
The cool-core galaxy cluster RXJ1720.1+2638 hosts extended radio emission near the cluster core, known as a minihalo. The origin of this emission is still debated and one piece of the puzzle has been the question of whether the supermassive black hole in the brightest central galaxy is actively powering jets. Here we present high-resolution e-MERLIN observations clearly indicating the presence of sub-kpc jets; this may have implications for the proposed origin of the minihalo emission, providing an ongoing source of relativistic electrons rather than a single burst sometime in the past, as previously assumed in simulations attempting to reproduce observational characteristics of minihalo-hosting systems.
