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X‐Ray Spectral Evolution of the Crab Pulse

  • Authors: Steven H. Pravdo, Lorella Angelini, and Alice K. Harding

Pravdo, Angelini, & Harding 1997 The Astrophysical Journal 491 808.

  • Provider: AAS Journals

Caption: Fig. 1.

Crab pulse, 5–60 keV, measured with 250 μs PCA data (solid line and filled diamonds), power‐law index with pulse phase (crosses), and reduced χ2 (open circles) for each bin. Sixty pulse‐phase bins are spectrally analyzed; the other 40 bins are either nebular‐background or transition bins with too few net counts for useful spectroscopy.

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