CYlindrical GAmma-ray Monitor 


PULSARS

Single pulsars use the rotational energy for their emission. At the surface of the rotating neutron star with a strong dipole magnetic field the quadrupole electrical field is induced due to the action of the unipolar generator: E=v xB/c. In this electrical field strong particle acceleration takes place, which is accompanied by the cascade e + e -  pair production. Motion of the particles along the curved magnetic field lines results in the magnetobremsstrahlung (curvature radiation), which for g (relativistic factor) of the order of 10 and B=10 12 Gauss produces hard gamma quanta. 

Geminga light curve according to EGRET data.

Schematic model of the pulsar as a rotating neutron star with an inclined dipole magnetic field.

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CYGAM (PDF, 450 Kb)

Space Research Institute,  2002- 2003

 

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Last updated on 10.06.03