XMM-Newton view of the N 206 superbubble in the Large Magellanic Cloud

XMM-Newton view of the N 206 superbubble in the Large Magellanic Cloud
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大麦哲伦云中 N 206 超级气泡的 XMM-牛顿视图

DOI:
10.1051/0004-6361/201219532
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发表时间:
2012
影响因子:
6.5
通讯作者:
Points
Points
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Kavanagh;Sasaki;Points

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AimsWe进行分析的X射线超级气泡在N 206 H II区域的大麦哲伦云使用当前的发电设施,以获得更好的理解在工作中的物理过程中的超级气泡,并提高我们的知识superbubble evolution.MethodsWe usedXMM-牛顿观测的N 206区域产生图像和提取光谱的超级气泡的漫发射。与麦哲伦云发射线巡天的Hα图像进行了形态学比较,并对漫射X射线发射进行了光谱分析。根据谱分析的结果,我们导出了超气泡中热气的物理性质。我们还确定了超级气泡中储存的总能量,并将其与恒星群体的预期能量输入进行了比较,以评估N 206超级气泡生长速率的差异。结果我们发现漫射X射线发射的最亮区域被Hα壳层限制,与超级气泡模型一致。此外,我们还发现了Hα壳层以外的微弱辐射,这是一个井喷区。两个发射区域的光谱分析指出,热冲击气体作为发射的可能来源。我们确定的总能量存储在泡沫和预期的能量输入的恒星人口。然而,由于有限的数据上的恒星人口,输入的能量是不好的约束,因此,没有明确的指示的增长率的差异是seeed.ConclusionsUsing高灵敏度的X射线数据fromXMM-牛顿和光学数据从麦哲伦云发射线调查,使我们能够更好地了解的物理性质的N 206超级气泡和解决一些关键问题的超级气泡的演变。
AimsWe perform an analysis of the X-ray superbubble in the N 206 H ii region in the Large Magellanic Cloud using current generation facilities to gain a better understanding of the physical processes at work in the superbubble and to improve our knowledge of superbubble evolution.MethodsWe usedXMM-Newtonobservations of the N 206 region to produce images and extract spectra of the superbubble diffuse emission. Morphological comparisons with Hαimages from the Magellanic Cloud Emission Line Survey were performed, and spectral analysis of the diffuse X-ray emission was carried out. We derived the physical properties of the hot gas in the superbubble based on the results of the spectral analysis. We also determined the total energy stored in the superbubble and compared this to the expected energy input from the stellar population to assess the superbubble growth rate discrepancy for N 206.ResultsWe find that the brightest region of diffuse X-ray emission is confined by a Hαshell, consistent with the superbubble model. In addition, faint emission extending beyond the Hαshell was found, which we attribute to a blowout region. The spectral analysis of both emission regions points to a hot shocked gas as the likely origin of the emission. We determine the total energy stored in the bubble and the expected energy input by the stellar population. However, due to limited data on the stellar population, the input energy is poorly constrained and, consequently, no definitive indication of a growth rate discrepancy is seen.ConclusionsUsing the high-sensitivity X-ray data fromXMM-Newtonand optical data from the Magellanic Cloud Emission Line Survey has allowed us to better understand the physical properties of the N 206 superbubble and address some key questions of superbubble evolution.
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