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DTSTAMP:20260416T190704
DTSTART:20130228T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/180636
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Neutron Stars: Magnetic equilibria in the crust and timing noise fr
 om magnetospheric activity
DESCRIPTION:Kostas Gourgouliatos\, McGill UniversityRésumé/abstract:The e
 volution of the magnetic field in crusts of Neutron Stars is dominated by 
 the Hall effect. I will discuss equilibria solutions for the structure of 
 the magnetic field in the crusts which are found analytically and numerica
 lly and their implications for the flow of the crustal electron fluid. In 
 particular dipole fields should be supported by a uniformly rotating elect
 ron fluid. Although these solutions bear some similarities to stellar MHD 
 equilibria\, there are some significant differences that can trigger magne
 tic activity\, if one assumes that a neutron star is born in MHD equilibri
 um. Complementary to that\, I will discuss the observed timing noise in hi
 gh magnetic field pulsars and magnetars and I will discuss a possible expl
 anation through the variation of the moment of inertia of the magnetospher
 eCe séminaire est présenté par le groupe astronomie et astrophysique du
  Département de physique de l'Université de Montréal.
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