SIMBAD references

2001ApJ...549..495H - Astrophys. J., 549, 495-508 (2001/March-1)

Gamma-ray emissions from pulsars: spectra of the TeV fluxes from outer gap accelerators.

HIROTANI K.

Abstract (from CDS):

We study the γ-ray emissions from an outer magnetospheric potential gap around a rotating neutron star. Migratory electrons and positrons are accelerated by the electric field in the gap to radiate copious γ-rays via a curvature process. Some of these γ-rays materialize as pairs by colliding with the X-rays in the gap, leading to a pair production cascade. Imposing the closure condition that a single pair produces one pair in the gap on average, we explicitly solve the strength of the acceleration field and demonstrate how the peak energy and the luminosity of the curvature-radiated, GeV photons depend on the strength of the surface blackbody and the power-law emissions. Some predictions on the GeV emission from 12 rotation-powered pulsars are presented. We further demonstrate that the expected pulsed TeV fluxes are consistent with their observational upper limits. An implication of high-energy pulse phase width versus pulsar age, spin, and magnetic moment is discussed.

Abstract Copyright:

Journal keyword(s): Acceleration of Particles - Gamma Rays: Observations - Gamma Rays: Theory - Magnetic Fields

Simbad objects: 15

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2001ApJ...549..495H and select 'bookmark this link' or equivalent in the popup menu