论文标题
链接ESO137-006的无线电裂片的准同步线螺纹
Collimated synchrotron threads linking the radio lobes of ESO137-006
论文作者
论文摘要
我们提出了Meerkat 1000 MHz和1400 MHz在南半球的明亮射电星系观测，ESO〜137-006。星系位于大规模和合并诺玛银河集群的中心。 Meerkat连续图像（rms 〜0.02 mjy/beam 〜10“分辨率）揭示了以前从未见过的新功能：既算是却是未知来源的准同步线线，这些线将伸展的和弯曲的电球电球裂片链接到ESO 〜137-006的伸展距离。螺纹陡峭，光谱索引在1000 MHz至1400 MHz之间的频谱索引最高为$α\ simeq 2 $。
We present MeerKAT 1000 MHz and 1400 MHz observations of a bright radio galaxy in the southern hemisphere, ESO~137-006. The galaxy lies at the centre of the massive and merging Norma galaxy cluster. The MeerKAT continuum images (rms ~0.02 mJy/beam at ~10" resolution) reveal new features that have never been seen in a radio galaxy before: collimated synchrotron threads of yet unknown origin, which link the extended and bent radio lobes of ESO~137-006. The most prominent of these threads stretches in projection for about 80 kpc and is about 1 kpc in width. The radio spectrum of the threads is steep, with a spectral index of up to $α\simeq 2$ between 1000 MHz and 1400 MHz.
