Radio-continuum study of Large Magellanic Cloud supernova remnant J0509-6731
Radio-continuum study of Large Magellanic Cloud supernova remnant J0509-6731
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DOI：
10.1093/mnras/stu499
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发表时间：
2013-12
影响因子：
4.8
通讯作者：
L. Bozzetto;M. Filipović;D. Urošević;R. Kothes;E. Crawford
中科院分区：
文献类型：
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作者：
L. Bozzetto;M. Filipović;D. Urošević;R. Kothes;E. Crawford
利用澳大利亚望远镜紧凑阵列（ATCA）对大麦哲伦星云（LMC）中的超新星遗迹（SNR）J 0509 -6731进行了20、13、6和3cm波段的观测。遗迹有一个环形形态，明亮的区域朝向西南翼。我们还发现了第二个明亮的内环，这是只看到在无线电连续。SNR几乎是圆形的，直径范围从7到8 pc，并且在36和3 cm之间的陡峭无线电频谱指数为0.73 ± 0.02，这是年轻SNR的特征。我们还报告了在6 cm处的残留物上检测到径向取向的极化，平均分数为
We present a detailed study of Australia Telescope Compact Array (ATCA) observations (� = 20, 13, 6 & 3 cm) of supernova remnant (SNR) J0509–6731 in the Large Magellanic Cloud (LMC). The remnant has a ring morphology with brightened regions towards the south-western limb. We also find a second brightened inner ring which is only seen in the radio-continuum. The SNR is almost circular, with a diameter ranging from 7 to 8 pc, and a steep radio spectral index between 36 and 3 cm of � = 0.73 ± 0.02, which is characteristic of younger SNRs. We also report detection of radially orientated polarisation across the remnant at 6 cm, with a mean fractional