Does mass accretion lead to field decay in neutron stars?

@article{Shibazaki1989DoesMA,
  title={Does mass accretion lead to field decay in neutron stars?},
  author={Noriaki Shibazaki and T Murakami and Jacob Shaham and Ken’ichi Nomoto},
  journal={Nature},
  year={1989},
  volume={342},
  pages={656-658}
}
WHETHER or not neutron-star magnetic fields decay is a matter of current debate. The recent observation1,2 of cyclotron lines from γ-ray-burst sources, thought to be relatively old neutron stars, indicates that they are strongly magnetized and therefore that their fields have not decayed. One interpretation of the correlation observed3 between the strength of the magnetic field and the mass accreted by the neutron star is that mass accretion may itself lead to the decay of the magnetic field… 
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References

SHOWING 1-10 OF 24 REFERENCES
Optical identification of binary pulsars: Implications for magnetic field decay in neutron stars
We report the discovery of the optical counterparts of two binary pulsar systems-0655+64 and 0820+02. In accordance with stellar evolution scenarios we find the optical counterparts to be white
Magnetic Field Decay and the Origin of Neutron Star Binaries
The origin of magnetized neutron stars in binaries and the 1.55 ms pulsar is examined in terms of the magnetic field decay model for radio pulsars with a decay time scale of order 5 x 10 to the 6th
Accretion by rotating magnetic neutron stars. III. Accretion torques and period changes in pulsating X-ray sources.
We use the solutions of the two-dimensional hydromagnetic equations obtained previously to calculate the torque on a magnetic neutron star accreting from a Keplerian disk. We find that the magnetic
Evidence for an asymptotic lower limit to the surface dipole magnetic field strengths of neutron stars
The discovery of a second millisecond binary radio pulsar1, PSR1855+09 (period P = 5ms), with a relatively wide circular orbit and low mass function indicates that the incidence of such systems (see
Gamma-ray bursts from remnant neutron star disks
We explore the consequences of a disk of matter orbiting an old neutron star. Such a disk will very slowly expand under internal viscous forces. When the inner edge approaches sufficiently close to
Ohmic decay of crustal neutron star magnetic fields
Calculations of ohmic decay of dipolar magnetic fields which are created so that they are initially confined to the crust are presented for the first time. It is shown that the field does not decay
Sustained magnetic fields in binary millisecond pulsars
The two known binary millisecond pulsars1,2 PSR1953 + 29 and PSR1855 + 09 with periods P =6.1ms and 5.4ms, respectively, and the long orbital-period binary radio pulsars3 are believed to have evolved
Is the 1.5-ms pulsar a young neutron star?
The 1.5-ms pulsar PSR1937+214 is an unusual object; its extremely short period and slow spin-down rate imply a magnetic field1 of 4×108 G, much lower than that of a canonical pulsar. Contrary to
A new class of radio pulsars
Sufficiently low magnetic field neutron stars which accrete for long times from a surrounding keplerian disk can be spun up to millisecond periods. After accretion ceases, such stars could become
Is GX5 – 1 a millisecond pulsar?
The bright galactic bulge source GX5–1 (4U1758–250) has recently been observed1 to exhibit quasi-periods between 25 and 50 ms, with a correlation between the corresponding frequencies f and the count
...
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