蟹状星云定标和星云X射线发射模型
On Calibrations using the Crab Nebula and Models of the Nebular X-ray Emission
摘要：
受一篇关于可能使用蟹状星云作为校准X射线响应函数的标准烛光的论文（Kirsch et al. 2005）的启发，我们研究了在这种校准时，与单个（吸收）幂律的内在偏离的后果。我们将我们的分析限制在三个更现代的X射线仪器-ROSAT/PSPC，RXTE/PCA和XMM-牛顿/EPIC-pn（突发模式）。结果表明，需要完善的三个响应函数的研究。我们也能够区分两个当前的理论模型的系统频谱。
英文摘要：
Motivated by a paper (Kirsch et al. 2005) on possible use of the Crab Nebula as a standard candle for calibrating X-ray response functions, we examine consequences of intrinsic departures from a single (absorbed) power law upon such calibrations. We limit our analyses to three more modern X-ray instruments-the ROSAT/PSPC, the RXTE/PCA, and the XMM-Newton/EPIC-pn (burst mode). The results indicate a need to refine two of the three response functions studied. We are also able to distinguish between two current theoretical models for the system spectrum.
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