The Phase-resolved X-Ray Spectra of the Crab Pulsar

Details The Phase-resolved X-Ray Spectra of the Crab Pulsar The Phase-resolved X-Ray Spectra of the Crab Pulsar

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...569..872z&link_type=abstract

The Astrophysical Journal, Volume 569, Issue 2, pp. 872-877.

Astronomy and Astrophysics

Astronomy

15

Stars: Pulsars: Individual: Name: Crab Pulsar, X-Rays: Stars

Scientific paper

We present a theoretical study of phase-dependent X-ray emission from the Crab pulsar. In the three-dimensional outer gap model for the Crab pulsar, X-ray emission is produced by synchrotron radiation of the secondary e+/- pairs, which is sensitive to the local properties of the emission regions, i.e., local magnetic field strength and local number e+/- density. We calculate X-ray pulse profiles for different energy bands and phase-dependent spectral indices of X-rays. We show that such a model can reproduce approximately the basic properties of the observed phase-dependent X-ray spectra of the Crab pulsar.

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