Statistics
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...363..597s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 363, Nov. 10, 1990, p. 597-602.
Statistics
34
Magnetic Stars, Pulsars, Stellar Evolution, Stellar Magnetic Fields, Radio Emission, Stellar Interiors, Stellar Luminosity, Stellar Models
Scientific paper
The evolution of neutron star magnetic fields plays a fundamental role in a wide variety of phenomena associated with pulsars, X-ray binaries, and gamma-ray bursters. It has been widely, but not unequivocally, assumed that neutron star magnetic fields decay exponentially. However, many of the proposed models for field decay suggest that the decay is related to the ohmic decay of crustal fields or electrical currents which, however, decay nonexponentially in general. Using the calculated field decay histories, pulsar statistics are examined. It is shown that nonexponential field decay is consistent with the current understanding of pulsar statistics. Since the field decays nonexponentially and may retain a substantial fraction of its initial strength at ages of a billion or more yr, it may provide a natural explanation for the millisecond pulsar magnetic fields.
Chanmugam G.
Sang Yeming
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