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Pulsar gamma-rays: Spectra luminosities and efficiencies (1980)

Harding, A. K.

In: CASI

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Publication Date: 2019-06-28

Description: The general characteristics of pulsar gamma ray spectra are presented for a model where the gamma rays are produced by curvature radiation from energetic particles above the polar cap and attenuated by pair production. The shape of the spectrum is found to depend on pulsar period, magnetic field strength, and primary particle energy. By a comparison of numerically calculated spectra with the observed spectra of the Crab and Vela pulsars, it is determined that primary particles must be accelerated to energies of about 3 x 10 to the 7th power mc sq. A genaral formula for pulsar gamma ray luminosity is determined and is found to depend on period and field strength.

Keywords: ASTROPHYSICS

Type: NASA-TM-82026

Format: application/pdf

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