论文标题
RAD@家庭公民科学发现AGN的发现，向其合并的伴侣银河带来了一个大型的单极泡沫
RAD@home citizen science discovery of an AGN spewing a large unipolar radio bubble onto its merging companion galaxy
论文作者
论文摘要
银河合并期间的AGN反馈是解释黑孔 - 加拉克斯共同进化的最受欢迎的模型。但是，AGN驱动的喷气/风/辐射如何与合并星系的气体相结合，这会导致积极的反馈，瞬时增强的恒星形成以及随后的负面反馈，恒星形成的下降，知之甚少。只有少数情况是在射流和伴侣星系相互作用导致喷气机中较小的离轴畸变的地方，并在富含气体的小伴侣中增强了恒星形成。在这里，我们简要地报告了一个非凡的案例，Rad12是由RAD@Home Citizen Science Collaboratory发现的，在该案例中，第一次出现了〜137 kpc的无线电喷射驱动泡沫显示出对对称的星系，这不是气体富裕的未成年人，而不是气体富裕的未成年人，而是在大型大型商标中的早期气poor早期的Galaxy。令人惊讶的是，柜台喷射侧（如果有的话）均未检测到积极的反馈和任何无线电叶。如果Rad12是真正的单方面喷气机，或者在合并期间被冲击被冲击捕获，压缩和重新加油，那就令人困惑了。这是使用GMRT，档案MEERKAT无线电数据和CFHT光学数据的RAD12的首次成像研究。
AGN feedback during galaxy merger has been the most favoured model to explain black hole-galaxy co-evolution. However, how the AGN-driven jet/wind/radiation is coupled with the gas of the merging galaxies, which leads to positive feedback, momentarily enhanced star formation, and subsequently negative feedback, a decline in star formation, is poorly understood. Only a few cases are known where the jet and companion galaxy interaction leads to minor off-axis distortions in the jets and enhanced star formation in the gas-rich minor companions. Here, we briefly report one extraordinary case, RAD12, discovered by RAD@home citizen science collaboratory, where for the first time a radio jet-driven bubble ~137 kpc is showing a symmetric reflection after hitting the incoming galaxy which is not a gas-rich minor but a gas-poor early-type galaxy in a major merger. Surprisingly, neither positive feedback nor any radio lobe on the counter jet side, if any, is detected. It is puzzling if RAD12 is a genuine one-sided jet or a case of radio lobe trapped, compressed and re-accelerated by shocks during the merger. This is the first imaging study of RAD12 presenting follow-up with the GMRT, archival MeerKAT radio data and CFHT optical data.
