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Keywords:

  • instabilities;
  • magnetic fields;
  • MHD;
  • stars: neutron;
  • gamma-rays: bursts

We treat the phenomenon of a γ-ray burst as the non-linear collapse of a magnetic cavity surrounding a neutron star with extremely large magnetic field B∼1015–1016 G due to the process of bubble shape instability in the resonant MHD field of an accreting plasma or on a neutron star surface. The QED effect of vacuum polarizability by a strong magnetic field is taken into a consideration. We develop an analogy with the phenomenon of sonoluminescence in which the gas bubble is located in a surrounding liquid with a driven sound intensity.