On the Nature of the Residual Magnetic Fields in Millisecond Pulsars

Details On the Nature of the Residual Magnetic Fields in Millisecond Pulsars On the Nature of the Residual Magnetic Fields in Millisecond Pulsars

2001-04-20

arxiv.org/abs/astro-ph/0104339v1

Astronomy and Astrophysics

Astrophysics

5 pages, 2 figures; accepted by A&A

Scientific paper

10.1051/0004-6361:20010520

We consider the expulsion of proton fluxoids along neutron vortices from the superfluid/superconductive core of neutron star with weak ($B<10^{10}$ G) magnetic field. The velocity of fluxoids is calculated from the balance of buoyancy, drag and crustal forces. We show, that the proton fluxoids can leave the superfluid core sliding {\it along} the neutron vortices on a timescale of about $10^7$ years. An alternative possibility is that fluxoids are aligned with the vortices on the same timescale. As the result, non--aligned surface magnetic fields of millisecond pulsars can be sustained for $\ga 10^9$ years only in case of a comparable dissipation timescale of the currents in the neutron star crust. This defines upper limits of the impurity concentration in the neutron star crust: $Q \la 0.1$ if a stiff equation of state determines the density profile.

Affiliated with

Also associated with

No associations

Rating

On the Nature of the Residual Magnetic Fields in Millisecond Pulsars 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 On the Nature of the Residual Magnetic Fields in Millisecond Pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Nature of the Residual Magnetic Fields in Millisecond Pulsars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-283018