论文标题
三合一：X射线类星体RX J1456.0+5048的VLBI无线电视图
Three in One: The VLBI Radio View of the X-ray Quasar RX J1456.0+5048
论文作者
论文摘要
RX J1456.0+5048是Rosat检测到的突出的X射线源。与X射线源相关的〜100-mjy级无线电发射。但是，随着角度分辨率的增加，干涉测量值表明，位于2个Arcmin中的三个不同的物体负责测量的总通量密度。这些无线电源是在天空中排队的，在投射中彼此之间相关还是彼此相近，尚不清楚。实际上，在文献中已经可以找到X射线，光学和无线电来源的不正确的交叉识别。在这里，我们总结了有关这一有趣的对象组的当前知识，其中三个来源中的两个显示了用很长的基线干涉法检测到紧凑的无线电发射（VLBI）。我们首次基于在5 GHz的档案欧洲VLBI网络（EVN）数据，首次提供了其中一个的VLBI图像。
RX J1456.0+5048 is a prominent X-ray source detected by ROSAT. There is ~100-mJy level radio emission associated with the X-ray source. However, interferometric observations with increasing angular resolution revealed that three distinct objects located within 2 arcmin are responsible for the measured total flux density. Whether these radio sources lining up in the sky are physically associated or just seen close to each other in projection is not immediately clear. In fact, incorrect cross-identification of the X-ray, optical and radio sources can already be found in the literature. Here we summarise the current knowledge about this intriguing group of objects, where two of the three sources show compact radio emission detected with very long baseline interferometry (VLBI). We present a VLBI image of one of them for the first time, based on archival European VLBI Network (EVN) data taken at 5 GHz.
