Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.251..399s&link_type=abstract
In ESA Proceedings of the Joint Varenna-Abastumani International School and Workshop on Plasma Astrophysics p 399-404 (SEE N87-
Astronomy and Astrophysics
Astrophysics
1
Electron-Positron Pairs, Pair Production, Positronium, Pulsar Magnetospheres, Pulsars, Quantum Mechanics, Stellar Magnetic Fields, Electric Fields, Lines Of Force, Stellar Luminosity
Scientific paper
The curvature γ-quanta emitted in the pulsar magnetospheres tangentially to the curved lines of force of the magnetic field are shown to be later canalized along the magnetic field - if it is strong enough, B ⪆ 0.1×Bcr = 4×1012G, - by gradually converting into a mutually bound electron-positron pair. The positronium thus arisen is stable against the ionizing action of the electric field near the pulsar unless it reaches a critical value about 107CGSE. This may prevent the screening of the electric field up to the distances from the pulsar, where the magnetic field is already below the value of 0.1 Bcr and the free pair creation may become essential. This effect provides a higher theoretical estimate for the total luminosity of pulsars (whose field at the surface Bs exceeds 0.1 Bcr) as compared to the conventional one.
Shabad Anatoly E.
Usov Vladimir V.
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