A multi-mission study of the Crab nebula: spectral response of hard X-ray detectors

Details A multi-mission study of the Crab nebula: spectral response of hard X-ray detectors A multi-mission study of the Crab nebula: spectral response of hard X-ray detectors

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.459..517r&link_type=abstract

In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor:

Physics

3

Crab Nebula, X-Ray Detectors, X-Ray Spectra

Scientific paper

We present a multi-mission study of the 0.5 - 180 keV spectrum of the Crab nebula and pulsar. We obtain a consistent hard X-ray spectral index for the X-ray data obtained from the various missions like RXTE, ASCA and BeppoSAX. We find that all hard X-ray data are consistent with a simple power-law. The deviations from the power-law are mainly due to the systematic errors involved in each of the detector systems used for the observations. Implications of these results on the use of Crab as a standard candle for calibration in future missions like INTEGRAL are briefly discussed.

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