高银河纬度的意外圆形无线电对象

论文标题

高银河纬度的意外圆形无线电对象

Unexpected Circular Radio Objects at High Galactic Latitude

论文作者

Norris, Ray P., Intema, Huib T., Kapinska, Anna D., Koribalski, Baerbel S., Lenc, Emil, Rudnick, L., Alsaberi, Rami, Anderson, Craig, Anderson, G. E., Crawford, E., Crocker, Roland, English, Jayanne, Filipovic, Miroslav D., Hopkins, Andrew M., Hurley-Walker, Natasha, Inoue, Susumu, Luken, Kieran, Macgregor, Peter, Manojlovic, Pero, Marvil, Josh, O'Brien, Andrew N., Raja, Wasim, Shobhana, Devika, Venturi, Tiziana, Collier, Jordan D., Hale, Catherine, Hotan, Aidan, Moss, Vanessa, Whiting, Matthew

论文摘要

我们使用澳大利亚平方公里阵列探路者望远镜在宇宙试点调查的进化图中找到了一类圆形无线电对象。这些物体以无线电图像作为圆形边缘闪烁的圆盘出现，大约是一个弧形直径，这与文献中先前报道的其他对象不同。我们探索了可能导致这些对象的几种可能机制，但似乎没有一个引人入胜的解释。

We have found a class of circular radio objects in the Evolutionary Map of the Universe Pilot Survey, using the Australian Square Kilometre Array Pathfinder telescope. The objects appear in radio images as circular edge-brightened discs, about one arcmin diameter, that are unlike other objects previously reported in the literature. We explore several possible mechanisms that might cause these objects, but none seems to be a compelling explanation.

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