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Magnetic field decay in isolated neutron starsThree mechanisms that promote the loss of magnetic flux from an isolated neutron star - Ohmic decay, ambipolar diffusion, and Hall drift - are investigated. Equations of motions are solved for charged particles in the presence of a magnetic field and a fixed background of neutrons, while allowing for the creation and destruction of particles by weak interactions. Although these equations apply to normal neutrons and protons, the present interpretations of their solutions are extended to cover cases of neutron superfluidity and proton superconductivity. The equations are manipulated to prove that, in the presence of a magnetic force, the charged particles cannot be simultaneously in magnetostatic equilibrium and chemical equilibrium with the neutrons. The application of the results to real neutron stars is discussed.
Document ID
19930028524
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Goldreich, Peter
(NASA Headquarters Washington, DC United States)
Reisenegger, Andreas
(California Inst. of Technology Pasadena, United States)
Date Acquired
August 15, 2013
Publication Date
August 10, 1992
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 395
Issue: 1
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A12521
Funding Number(s)
CONTRACT_GRANT: NSF AST-89-13664
CONTRACT_GRANT: NAGW-2372
Distribution Limits
Public
Copyright
Other

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