论文标题
在与EVN的合并银河系中搜索双峰宽发射线的起源
Searching for the Origin of Double-peaked Broad Emission Lines in a Merging Galaxy with EVN
论文作者
论文摘要
当前的宇宙结构形成模型预测星系会通过频繁的合并发展。在这些事件中，位于星系中心的中央区域中的超级质量黑洞（SMBH），同时通过动力学摩擦失去能量。如果这些星系合并中SMBH的检测是直接从周围的物质中作为活性银河核（AGN）积极积聚的，那么它们是直接的。目前，只有几个双重AGN。识别双重AGN候选者的一种方法是检测光谱中的双峰排放线。如果这些是宽光谱线，则可能表明存在两个与两个AGN相关的宽线区域。 2MASS J165939.7+183436是一个合并系统，可以通过双重AGN来解释被检测到的双峰宽发射线，估计分离为0.085美元。$ 0.085英寸$。该对象的无线电发射在电台天空的微弱图像中以二十美分的测量量增强，并以2.6 mjy的速度互动。多元素链接的干涉仪网络与图像2MASS J165939.7+183436在1.7 GHz时，我们没有从源头检测到紧凑的无线电发射。
The current cosmological structure formation models predict that galaxies evolve through frequent mergers. During these events, the supermassive black holes (SMBHs) residing in the centres of the galaxies shrink to the central region, while losing energy via dynamical friction. Detection of SMBHs in these galaxy mergers is straightforward if they are actively accreting matter from their surroundings as active galactic nuclei (AGN). Currently, only a few dual AGN are known. One way to identify dual AGN candidates is by detecting double-peaked emission lines in their spectra. If these are broad spectral lines, it may indicate the existence of two broad line regions associated with two AGN. 2MASS J165939.7+183436 is a merging system, where the detected double-peaked broad emission lines can be explained by a dual AGN with an estimated separation of $0.085"$. Radio emission from this object was detected in the Faint Images of the Radio Sky at Twenty-centimeters survey with a flux density of 2.6 mJy. We used the European Very Long Baseline Interferometer Network and the enhanced Multi-Element Remotely Linked Interferometer Network to image 2MASS J165939.7+183436 at 1.7 GHz. We did not detect compact radio emission from the source.
