Abstract
We propose, as a model for gamma-ray bursters, that the energy released by a thermonuclear runaway under the surface of a slowly accreting, magnetized, neutron star, is transported up to the atmosphere by Alfven waves, driven by overstable magnetoconvection. In the atmosphere, the short scale magnetic field lines reconnection generates an electric field. The electrons accelerated by this process produce gamma-rays by inverse Compton scatterings with blackbody photons of a few keV. These gamma-rays are strongly beamed along the magnetic field lines; half of them, moving upwards, escapes freely; the other half undergoes again Compton interactions, and create a subpopulation of hot, isotropic electrons, which emit synchrotron radiation. The observed spectra can be reproduced by the combination of these three components: black body, inverse Compton and synchrotron.
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Hameury, J.M., Bonazzola, S., Heyvaerts, J., Lasota, J.P. (1984). Gamma-Ray Bursts: A Model. In: Bancel, D., Signore, M. (eds) Problems of Collapse and Numerical Relativity. NATO ASI Series, vol 134. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6460-0_23
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DOI: https://doi.org/10.1007/978-94-009-6460-0_23
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