Line features in the X-ray spectrum of the Crab pulsar

Details Line features in the X-ray spectrum of the Crab pulsar Line features in the X-ray spectrum of the Crab pulsar

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ans..conf..130h&link_type=abstract

In its Accreting Neutron Stars p 130-133 (SEE N83-15179 05-88)

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1

Crab Nebula, Line Spectra, Pulsars, Pulse Rate, X Ray Sources, Energy Spectra, Indexes (Ratios), Spectrum Analysis, Variability

Scientific paper

Observation of the Crab pulsar reveal spectral features in the X-ray region that are not quite consistent with the well established theory of a synchrontron origin of the pulsed radar radiation. Evidence was found for a possible emission line at 73 keV with an intensity of *10/cu photons/sq cm/sec from the overall Crab spectrum. Another source of high energy emission due to a hot plasma is suggested. Pulse-phase spectra that show a significant change of the spectral index across the pulse are discussed. Pulse-dependent spectral indexes are compared with those measured by HEAO-1 in the same energy range in a table. The two data sets show the same general behavior, though the amplitude of the variation seems to be higher in the balloon data.

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