Electromagnetic bursting of a rapidly rotating magnetized neutron star in a close binary system |
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| Authors: | A Treves E Szuszkiewicz M Tavani |
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| Institution: | (1) International School for Advanced Studies, SISSA, via Beirut 2–4, 34013 Trieste, Italy;(2) Department of Astronomy, Columbia University, 10027 New York, NY, USA |
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| Abstract: | We examine a possible manifestation of the electromagnetic activity of a magnetized, rotating neutron star in a binary system. Accreting matter from the companion is initially accumulated at the magnetosphere. When the accumulated mass is such that the inflow can start, together with the accretion flare there will be a burst due to the closure of electric currents. The luminosity associated to the latter effect may be as large as 1042 erg/s, if a neutron star possesses the following characteristics: massM =M
 , period of rotationP = 5 ms, magnetic fieldB
0 = 1012 G, and radiusr
0 = 106 cm. The electromagnetic activity might be relevant for understanding soft gamma ray repeaters. |
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