Super-Eddington winds from neutron stars

Statistics – Computation

Scientific paper

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176

Binary Stars, Computational Astrophysics, Neutron Stars, Stellar Winds, Astronomical Models, Eddington Approximation, Electromagnetic Radiation, Stellar Luminosity

Scientific paper

Results are presented from a study of winds driven by a super-Eddington rate of energy deposition near the surface of a neutron star, a condition which may develop following a collision between two neutron stars when more than 10 to the 53rd ergs is radiated during a few seconds. A fraction of that energy, perhaps as large as 10 to the 50th ergs, may be transformed into electron-positron pairs and drive a powerful wind. Using a model of the highly super-Eddington wind, the fraction of energy injected into a wind that emerges as gamma rays is estimated. It is shown that it is possible to reach gamma-ray temperatures with the optically thick winds, provided the energy injection rate is sufficiently high.

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