منابع مشابه
Charged-Particle Transport in anisotropic magnetic Turbulence
Turbulence with an associated turbulent magnetic field is common in astrophysical environments. The determination of the transport of charged particles both parallel and perpendicular to the mean magnetic field is of considerable interest. Quasi-linear analysis or direct numerical simulation can be used to find the effects of the turbulent magnetic field on the transport of charged particles. A...
متن کاملDiffusion in non-magnetic stars and COROT
New developments in the modeling of non-magnetic non-rotating A stars have had a major impact on our understanding of the formation of abundance anomalies in these stars. The great sensitivity of the pulsational properties as well as of the observable chemical composition to the internal mixing processes in chemically peculiar stars make these objects potentially important tools to investigate ...
متن کاملNon-dipolar magnetic fields in Ap stars
An arbitrary initial magnetic field in an A star evolves into a stable equilibrium. Simulations are presented of the formation of non-axisymmetric equilibria consisting of twisted flux tubes meandering under the surface of the star, and analytic arguments are given relating the stability and form of these equilibria. These results may help to explain observations of Ap stars with very non-dipol...
متن کاملOn non-axisymmetric magnetic equilibria in stars
In previous work stable approximately axisymmetric equilibrium configurations for magnetic stars were found by numerical simulation. Here I investigate the conditions under which more complex, non-axisymmetric configurations can form. I present numerical simulations of the formation of stable equilibria from turbulent initial conditions and demonstrate the existence of non-axisymmetric equilibr...
متن کاملType II superconductivity and magnetic flux transport in neutron stars
The transition to a type II proton superconductor which is believed to occur in a cooling neutron star is accompanied by changes in the equation of hydrostatic equilibrium and by the formation of proton vortices with quantized magnetic flux. Analysis of the electron Boltzmann equation for this system and of the proton supercurrent distribution formed at the transition leads to the derivation of...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1986
ISSN: 0252-9211
DOI: 10.1017/s0252921100091971