High-Energy Nonthermal Emission from High-Field Pulsars

Details High-Energy Nonthermal Emission from High-Field Pulsars High-Energy Nonthermal Emission from High-Field Pulsars

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...632..523z&link_type=abstract

The Astrophysical Journal, Volume 632, Issue 1, pp. 523-530.

Astronomy and Astrophysics

Astronomy

5

Gamma Rays: Theory, Stars: Pulsars: General, Radiation Mechanisms: Nonthermal, X-Rays: Stars

Scientific paper

We study high-energy radiation properties of high-field (1013-1014 G) pulsars in the framework of the outer-gap model. In this model, charged particles are accelerated inside the outer gap, which depends on the magnetic inclination angle and magnetic geometry. High-energy photons emitted by these relativistic charged particles produce electrons/positrons through magnetic pair production on their way from the outer gap to the neutron star surface, and these pairs produce nonthermal X-rays by synchrotron radiation. Applying this model to high-field pulsars, the characteristic γ-ray energies, nonthermal X-ray luminosity, and γ-ray luminosity are calculated. Furthermore, comparisons of the predicted γ-ray fluxes for these high-field pulsars with the sensitivities of AGILE and GLAST are given. We discuss the possibility that some high-field pulsars with ages of ~104.9 to ~105.5 yr might be detected by AGILE.

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