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arXiv · 1003.1916

On Calibrations using the Crab Nebula and Models of the Nebular X-ray Emission

M. C. Weisskopf·M. Guainazzi·K. Jahoda·N. Shaposhnikov·S. L. O'Dell·V. E. Zavlin·C. Wilson-Hodge·R. F. Elsner
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Abstract

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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M. C. Weisskopf, M. Guainazzi, K. Jahoda, N. Shaposhnikov, S. L. O'Dell, V. E. Zavlin, C. Wilson-Hodge, R. F. Elsner. 2010-03-09. On Calibrations using the Crab Nebula and Models of the Nebular X-ray Emission. https://doi.org/10.1088/0004-637x%2F713%2F2%2F912

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