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arXiv 1111.6649astro-ph.HE
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脉冲星B0529-66附近大麦云超新星遗迹J0529-6653的多频研究

Multi-frequency study of the Large Magellanic Cloud Supernova Remnant J0529-6653 near Pulsar B0529-66

L. M. Bozzetto, M. D. Filipović, E. J. Crawford, F. Haberl, M. Sasaki, D. Urosević, W. Pietsch, J. L. Payne, A. Y. De Horta, M. Stupar, N. Tothill, J. Dickel, Y… 展开作者

L. M. Bozzetto, M. D. Filipović, E. J. Crawford, F. Haberl, M. Sasaki, D. Urosević, W. Pietsch, J. L. Payne, A. Y. De Horta, M. Stupar, N. Tothill, J. Dickel, Y. -H. Chu, R. Gruendl

摘要:

本文报道了对位于已知射电脉冲星PSR B 0529 -66投影附近的大麦云(LMC)中超新星遗迹(SNR)J 0529 - 6653的ATCA和ROSAT探测。在无线电连续频率,这LMC对象遵循一个典型的SNR结构的壳形态与明亮的区域在西南部。它的形状近似圆形,D=33 x 31 pc(每个方向的不确定度为1 pc),射电频谱指数α =-0.68 $+-$ 0.03 --典型的中年信噪比。我们还报告了在6 cm处检测到峰值为17 ± 7%的极化区域。从合并PSPC数据产生的ROSAT图像的调查显示,存在的扩展X射线发射与SNR的无线电发射相一致。在X射线中,最亮的部分在东北部。我们讨论了SNR-PSR关联的各种情况,重点是大的年龄差异,缺乏脉冲星的踪迹,没有突出的点状无线电或X射线源。

英文摘要:

We report the ATCA and ROSAT detection of Supernova Remnant (SNR) J0529--6653 in the Large Magellanic Cloud (LMC) which is positioned in the projected vicinity of the known radio pulsar PSR B0529-66. In the radio-continuum frequencies, this LMC object follows a typical SNR structure of a shell morphology with brightened regions in the south-west. It exhibits an almost circular shape of D=33 x 31 pc (1 pc uncertainty in each direction) and radio spectral index of alpha=-0.68$+-$0.03 - typical for mid-age SNRs. We also report detection of polarised regions with a peak value of 17+-7% at 6 cm. An investigation of ROSAT images produced from merged PSPC data reveals the presence of extended X-ray emission coincident with the radio emission of the SNR. In X-rays, the brightest part is in the north-east. We discuss various scenarios in regards to the SNR-PSR association with emphasis on the large age difference, lack of a pulsar trail and no prominent point-like radio or X-ray source.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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