Positron production by pulsars

Details Positron production by pulsars Positron production by pulsars

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234..612s&link_type=abstract

Astrophysical Journal, Part 1, vol. 234, Dec. 1, 1979, p. 612-614.

Astronomy and Astrophysics

Astronomy

14

Gamma Ray Astronomy, Particle Production, Positron Annihilation, Pulsars, Crab Nebula, Galactic Nuclei, Line Spectra, Stellar Models

Scientific paper

Analytical calculations based on the 'polar-cap light-cylinder' (PCLC) (Sturrock, 1971a) and 'polar-cap force-balance' (PCFB) (Roberts and Sturrock, 1972,3) pulsar models show that in either case the intensity of the 511 keV gamma-ray line from the galactic center can be explained as the result of the annihilation of positrons produced by pulsars. The Crab pulsar (braking index approximately 2.5) is estimated to have a power budget of 10 to the 38th ergs/s, and to produce a total number of 10 to the 51.7th positrons. It is suggested that positron annihilation can be supplied by pulsars if the birthrate of pulsars in the galactic center is 10 to the -8.2nd/s.

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