Vortex pinning in the superfluid core of neutron stars and the rise of pulsar glitches

  title={Vortex pinning in the superfluid core of neutron stars and the rise of pulsar glitches},
  author={Aur'elien Sourie and Nicolas Chamel},
  journal={Monthly Notices of the Royal Astronomical Society},
  • A. Sourie, N. Chamel
  • Published 27 January 2020
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Timing of the Crab and Vela pulsars has recently revealed very peculiar evolutions of their spin frequency during the early stage of a glitch. We show that these differences can be interpreted from the interactions between neutron superfluid vortices and proton fluxoids in the core of these neutron stars. In particular, pinning of individual vortices to fluxoids is found to have a dramatic impact on the mutual friction between the neutron superfluid and the rest of the star. The number of… 

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