Download presentation
Presentation is loading. Please wait.
1
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
3
Non-typically long period for young neutron star
6
F. Weber
7
Global Torsional Pulsations Magnetic field frozen in the neutron star serves as a chief promoter of radiative activity of pulsars magnetars
8
Alfven MHD pulsations of neutron star in dissipative free regime
11
The detected QPO’s (periodicity) in X-ray emission of neutron stars can be caused by non-radial Alfven MHD oscillations of neutron stars.
12
Torsional vibrations in the surface layers may explain oscillations in the tail of Type I X-ray bursts T. Strohmayer & A.Watts
13
Electromagnetic properties of neutron star matter
20
The point is to compute periods of Alfven oscillations in the crust
21
Oscillations of crust against core generating spiral magneto-electron waves (helicons or whistlers) Spiral oscillations of magnetic flux density and density of electron flow in spiral magneto-electron wave
22
X-ray and gamma-ray emission can be generated by cyclotron oscillations of electrons
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.