Post-burst pulsed X-ray and gamma-ray emission of magnetars (SGR & AXP) is most likely powered by...
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Transcript of Post-burst pulsed X-ray and gamma-ray emission of magnetars (SGR & AXP) is most likely powered by...
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Post-burst pulsed X-ray and gamma-ray emission of magnetars (SGR & AXP) is most likely powered by non-radial torsion oscillations of neutron stars
Sergey Bastrukov
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• Non-typically long period for young neutron star
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F. Weber
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Global Torsional Pulsations
Magnetic field frozen in the neutron star serves as a chief promoter of radiative activity of pulsars magnetars
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Alfven MHD pulsations of neutron star in dissipative free regime
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The detected QPO’s (periodicity) in X-ray emission of neutron stars can The detected QPO’s (periodicity) in X-ray emission of neutron stars can be caused by non-radial Alfven MHD oscillations of neutron stars.be caused by non-radial Alfven MHD oscillations of neutron stars.
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Torsional vibrations in the surface layers may explain oscillations in the tail of Type I X-ray bursts
T. Strohmayer & A.Watts
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Electromagnetic properties of neutron star matter
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The point is to compute periods of Alfven oscillations in the crust
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Oscillations of crust against core generating spiral magneto-electron waves (helicons or whistlers)
Spiral oscillations of magnetic flux density and densityof electron flow in spiral magneto-electron wave
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X-ray and gamma-ray emission can be generated by cyclotron oscillations of electrons
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