Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-01-22
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
27 pages, 1 eps figure. Minor corrections and structural changes, it matches the version to appear in MNRAS
Scientific paper
Mature neutron stars are cold enough to contain a number of superfluid and superconducting components. These systems are distinguished by the presence of additional dynamical degrees of freedom associated with superfluidity. In order to consider models with mixtures of condensates we need to develop a multifluid description that accounts for the presence of rotational neutron vortices and magnetic proton fluxtubes. We also need to model the forces that impede the motion of vortices and fluxtubes, and understand how these forces act on the condensates. This paper concerns the development of such a model for the outer core of a neutron star, where superfluid neutrons co-exist with a type II proton superconductor and an electron gas. We discuss the hydrodynamics of this system, focusing on the role of the entrainment effect, the magnetic field, the vortex/fluxtube tension and the dissipative mutual friction forces. Out final results can be directly applied to a number of interesting astrophysical scenarios, e.g. associated with neutron star oscillations or the evolution of the large scale magnetic field.
Andersson Nils.
Glampedakis Kostas
Samuelsson Lars
No associations
LandOfFree
Magnetohydrodynamics of superfluid and superconducting neutron star cores does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetohydrodynamics of superfluid and superconducting neutron star cores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetohydrodynamics of superfluid and superconducting neutron star cores will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-656276