Determination of the time scale of the magnetic moment decay in pulsars

Details Determination of the time scale of the magnetic moment decay in pulsars Determination of the time scale of the magnetic moment decay in pulsars

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...118...29n&link_type=abstract

Astronomy and Astrophysics, vol. 118, no. 1, Feb. 1983, p. 29-32.

Astronomy and Astrophysics

Astrophysics

3

Magnetic Moments, Pulsars, Stellar Evolution, Stellar Magnetic Fields, Stellar Rotation

Scientific paper

The decay or alignment of the magnetic moment in neutron stars, which may cause the magnetic torques to diminish with time, is investigated. Assuming that a pulsar's torque diminishes exponentially with a decay time constant tauD, it is shown that tauD may be determined empirically from the second time-derivative measurements of pulsar rotational frequency. Estimates of tauD are presented for a selected group of pulsars having the required precision of timing measurements, and the level of precision required for these measurements is estimated.

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