Possible accretion instabilities on magnetized rotating neutron stars
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The high energy particles emitted by a pulsar prevent the accretion of the interstellar matter onto the star. However, during the life of a pulsar the energy output decreases and after elapsing of critical timetcr the pulsar mechanism is obviously inhibited and matter may penetrate through the radius of capturer a . It is proposed that a possible accumulation of this matter in the regionr≥r c , wherer c is the corotational radius, is followed by a sudden fall onto the stellar surface. Short bursts of high energy photons may be expected as a result. A possible explanation of recently observed gamma-ray bursts by this mechanism is discussed.
KeywordsEnergy Photon Neutron Star Energy Output Energy Particle High Energy Photon
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