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Crust-breaking by neutron superfluids and the VELA pulsar glitches

Journal Article · · Astrophys. J., v. 203, no. 1, pp. 213-222
DOI:https://doi.org/10.1086/154069· OSTI ID:4031149

Anderson's (1975) suggestion of neutron-superfluid vortex pinning and unpinning in the crust lattice of a neutron star as the origin of pulsar timing noise is combined with existing estimates of the lattice breaking strength and creep. For the Vela pulsar, such models give large sudden jumps in frequency and in slowing-down rates as well as an interval between glitches, all of which are comparable to those observed. The qualitative differences between Vela and Crab glitches can also be understood.

Research Organization:
Department of Physics, Columbia University
NSA Number:
NSA-33-030566
OSTI ID:
4031149
Journal Information:
Astrophys. J., v. 203, no. 1, pp. 213-222, Journal Name: Astrophys. J., v. 203, no. 1, pp. 213-222; ISSN ASJOA
Country of Publication:
United States
Language:
English

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Related Subjects

*NEUTRON STARS-- SUPERFLUIDITY
*PULSARS-- STAR MODELS
640102* --Physics Research--Astrophysics & Cosmology--Stars
COSMIC RADIO SOURCES
DENSITY
FREQUENCY DEPENDENCE
N56200* --Physics (Astrophysics & Cosmology)--Stars
N56300 --Physics (Astrophysics & Cosmology)--Quasi-stellar
Radio & X-Ray Sources
ROTATION
VORTICES