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首页> 外文期刊>The Astrophysical journal >INVESTIGATING CXOU J163802.6–471358: A NEW PULSAR WIND NEBULA IN THE NORMA REGION?
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INVESTIGATING CXOU J163802.6–471358: A NEW PULSAR WIND NEBULA IN THE NORMA REGION?

机译:正在调查CXOU J163802.6–471358:诺玛地区的新脉冲星云吗?

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We present the first analysis of the extended source CXOU J163802.6–471358, which was discovered serendipitously during the Chandra X-ray survey of the Norma region of the Galactic spiral arms. The X-ray source exhibits a cometary appearance with a point source and an extended tail region. The complete source spectrum is fitted well with an absorbed power law model and jointly fitting the Chandra spectrum of the full source with one obtained from an archived XMM-Newton observation results in best fit parameters N H and (90% confidence uncertainties). The unabsorbed luminosity of the full source is then ?erg?s–1 with d 10 = d/10 kpc, where a distance of 10?kpc is a lower bound inferred from the large column density. The radio counterpart found for the source using data from the Molonglo Galactic Plane Survey epoch-2 shows an elongated tail offset from the X-ray emission. No infrared counterpart was found. The results are consistent with the source being a previously unknown pulsar driving a bow shock through the ambient medium.
机译:我们对扩展源CXOU J163802.6–471358进行了首次分析,该分析是在对银河系螺旋臂的诺玛地区进行Chandra X射线调查时偶然发现的。 X射线源具有点源和延伸的尾巴区域的彗星外观。完整的源光谱与吸收功率定律模型非常吻合,并与从存档的XMM-Newton观测结果中获得的全源Chandra光谱共同拟合,其最佳拟合参数为N H和(90%的置信度不确定度)。则全光源的未吸收光度为erg?s–1,d 10 = d / 10 kpc,其中10?kpc的距离是从大柱密度推断出的下限。使用Molonglo银河系平面测量纪元2的数据为源找到的无线电对应物显示出与X射线发射相对应的细长尾部偏移。找不到红外对应物。结果与源是先前未知的脉冲星一致,该脉冲星通过周围介质驱动弓形冲击。

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