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arXiv 1109.6326astro-ph.GA
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射电源G296 .7-0.9的多波长研究:确认为银河系超新星遗迹

A multi-wavelength study of the radio source G296.7-0.9: confirmation as a Galactic supernova remnant

W. J. Robbins, B. M. Gaensler, T. Murphy, S. Reeves, A. J. Green

摘要:

本文对G296.7-0.9射电源进行了多波长研究。这个源具有双边射电形态,射电频谱指数为-0.5 +/-0.1,稀疏的线性极化斑块,以及在射电边界附近具有明亮弧的热X射线。根据这些特征,我们认为G296.7-0.9是超新星遗迹。SNR在其环境背景下的年龄和形态表明,该源与HII区域位于同一位置,并且冲击波阵面的部分已经爆发成较低密度的介质。我们没有看到与SNR G296.7-0.9相关的中子星或脉冲星风星云的证据。

英文摘要:

We present a multi-wavelength study of the radio source G296.7-0.9. This source has a bilateral radio morphology, a radio spectral index of -0.5 +/- 0.1, sparse patches of linear polarisation, and thermal X-rays with a bright arc near the radio boundary. Considering these characteristics, we conclude that G296.7-0.9 is a supernova remnant (SNR). The age and morphology of the SNR in the context of its environment suggest that the source is co-located with an HII region, and that portions of the shock front have broken out into a lower density medium. We see no evidence for a neutron star or pulsar wind nebula associated with SNR G296.7-0.9.

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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