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arXiv 0706.1909astro-ph
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Kes 75超新星遗迹的X射线和热尘埃辐射观测

Observations of X-rays and Thermal Dust Emission from the Supernova Remnant Kes 75

T. D. Morton, P. Slane, K. J. Borkowski, S. P. Reynolds, D. J. Helfand, B. M. Gaensler, J. P. Hughes

摘要:

我们介绍了斯皮策太空望远镜和钱德拉X射线天文台观测的复合银河系超新星遗迹Kes 75(G29.7-0.3)。我们使用在24微米处检测到的通量和来自新的深X射线观测的拟合光谱的热气参数来约束尘埃排放模型,获得尘埃与气体的质量比M_dust/M_gas ~0.001。我们发现,一个两个组件的热模型,名义上表示冲击扫星际或拱星材料和反向冲击喷出物,充分适合的X射线光谱,虽然有点高的隐含密度的两个组件。我们推测,这个模型意味着一个沃尔夫-拉叶祖残体。我们还提出了中央脉冲星风星云的红外通量上限。

英文摘要:

We present Spitzer Space Telescope and Chandra X-ray Observatory observations of the composite Galactic supernova remnant Kes 75 (G29.7-0.3). We use the detected flux at 24 microns and hot gas parameters from fitting spectra from new, deep X-ray observations to constrain models of dust emission, obtaining a dust-to-gas mass ratio M_dust/M_gas ~0.001. We find that a two-component thermal model, nominally representing shocked swept-up interstellar or circumstellar material and reverse-shocked ejecta, adequately fits the X-ray spectrum, albeit with somewhat high implied densities for both components. We surmise that this model implies a Wolf-Rayet progenitor for the remnant. We also present infrared flux upper limits for the central pulsar wind nebula.

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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