Vortex-interface interactions and generation of glitches in pulsars

ABSTRA C T We show that the crust‐core interface in neutron stars acts as a potential barrier to the peripheral neutron vortices approaching the interface in the model in which these are coupled to the proton vortex clusters. This elementary barrier arises because of the interaction of vortex magnetic flux with the Meissner currents set up by the crustal magnetic field at the interface. The dominant part of the force is derived from the cluster‐interface interaction. As a result of the stopping of the continuous neutron vortex current through the interface, angular momentum is stored in the superfluid layers in the vicinity of the crust‐ core interface during the interglitch period. Discontinuous annihilation of proton vortices at the boundary restores the neutron vortex current and spins up the observable crust on short time-scales, leading to a glitch in the spin characteristics of a pulsar.

[1]  N. Grün,et al.  On the high-energy limit for the ratio of helium double- to single-ionization in collisions with highly charged ions , 2000 .

[2]  E. Aubourg,et al.  19th Texas Symposium on Relativistic Astrophysics and Cosmology , 1998 .

[3]  B. Carter,et al.  RELATIVISTIC MODELS FOR SUPERCONDUCTING-SUPERFLUID MIXTURES , 1998, gr-qc/9806024.

[4]  Brandon Carter,et al.  DIFFERENTIAL ROTATION OF RELATIVISTIC SUPERFLUID IN NEUTRON STARS , 1997, astro-ph/9711042.

[5]  G. Mendell.  Magnetohydrodynamics in superconducting-superfluid neutron stars , 1997, astro-ph/9702032.

[6]  K. Nomoto,et al.  Thermal Response of a Neutron Star to a Glitch , 1997 .

[7]  K. Oyamatsu,et al.  Exotic Nuclear Rod Formation Induced by Superfluid Vortices in Neutron Star Crusts , 1997 .

[8]  W. Kluźniak,et al.  Superfluid densities in neutron-star matter. , 1996, Physical review. C, Nuclear physics.

[9]  R. Epstein,et al.  Observational Constraints on the Internal Structure and Dynamics of the Vela Pulsar , 1996, astro-ph/9602136.

[10]  R. Epstein,et al.  Thermally driven neutron star glitches , 1995, astro-ph/9508021.

[11]  A. Sedrakian.  Vortex repinning in neutron star crusts , 1995 .

[12]  Pethick,et al.  Kaon energies in dense matter. , 1995, Physical review letters.

[13]  D. Sedrakian,et al.  Superfluid Core Rotation in Pulsars. I. Vortex Cluster Dynamics , 1995 .

[14]  J. Cordes,et al.  Superfluid Core Rotation in Pulsars. II. Postjump Relaxations , 1995 .

[15]  C. Pethick,et al.  The inner boundary of a neutron-star crust , 1995 .

[16]  K. Cheng,et al.  A Tool for Probing the Structure of Neutron Stars: Transient X-Ray Emission , 1994 .

[17]  G. Deutscher,et al.  Fermi-Liquid Theory of Non-S-Wave Superconductivity , 2024, 2408.04151.

[18]  P. B. Jones.  Rotation of the neutron-drip superfluid in pulsars: evidence for corotating vortices , 1993 .

[19]  V. Thorsson,et al.  Composition, structure and evolution of neutron stars with kaon condensates , 1993, nucl-th/9305006.

[20]  H. Chau,et al.  Postglitch Relaxation of the VELA Pulsar after Its First Eight Large Glitches: A Reevaluation with the Vortex Creep Model , 1993 .

[21]  H. Chau,et al.  Magnetic field decay from the core of neutron stars: Effects of interpinning of 3P2 neutron superfluid and 1S0 proton superconducting fluid , 1993 .

[22]  C. Thompson,et al.  Neutron star dynamos and the origins of pulsar magnetism , 1993 .

[23]  C. Pethick,et al.  Neutron star crusts. , 1993, Physical review letters.

[24]  Andreas Reisenegger,et al.  Magnetic field decay in isolated neutron stars , 1992 .

[25]  M. Baldo,et al.  Proton and neutron superfluidity in neutron star matter , 1992 .

[26]  M. Ruderman.  Neutron Star Crustal Plate Tectonics. III. Cracking, Glitches, and Gamma-Ray Bursts , 1991 .

[27]  P. B. Jones.  Neutron superfluid spin-down and magnetic field decay in pulsars , 1991 .

[28]  R. Epstein,et al.  Soft X-ray pulses from neutron star glitches , 1991 .

[29]  G. Mendell.  Superfluid hydrodynamics in rotating neutron stars. I - Nondissipative equations. II - Dissipative effects , 1991 .

[30]  R. Epstein,et al.  Mechanics and Energetics of Vortex Unpinning in Neutron Stars , 1991 .

[31]  P. B. Jones.  Rotation of the neutron-drip superfluid in pulsars : the interaction and pinning of vortices , 1991 .

[32]  G. Mendell,et al.  The coupling of charged superfluid mixtures to the electromagnetic field , 1991 .

[33]  D. Bhattacharya,et al.  A novel mechanism for the decay of neutron star magnetic fields , 1990 .

[34]  A. Cheng,et al.  Thermal Afterglow from Transient Energy Release in Neutron Stars , 1989 .

[35]  H. Ögelman,et al.  Timing neutron stars , 1989 .

[36]  J. Cordes,et al.  JPL pulsar timing observations. V. Macro and microjumps in the Vela pulsar 0833-45 , 1988 .

[37]  S. Levshakov,et al.  Generation of neutron star magnetic fields by thermomagnetic effects , 1986 .

[38]  M. Livio,et al.  Proceedings of the 12th Texas symposium on relativistic astrophysics , 1986 .

[39]  S. Langer,et al.  Rapid postglitch spin-up of the superfluid core in pulsars , 1984 .

[40]  R. Blandford,et al.  Thermal origin of neutron star magnetic fields , 1983 .

[41]  D. M. Sedrakyan,et al.  Thermodynamics of superfluid solutions in the npe phase of a neutron star , 1983 .

[42]  N. Itoh.  Prediction of Pulsar Glitch Frequency Based on the Hard Superfluid Model , 1983 .

[43]  P. Anderson,et al.  The rheology of neutron stars Vortex-line pinning in the crust superfluid , 1982 .

[44]  P. Anderson,et al.  Giant glitches and pinned vorticity in the Vela and other pulsars , 1981 .

[45]  J. Cordes,et al.  Pulsar timing. IV - Physical models for timing noise processes , 1981 .

[46]  I. Easson.  Postglitch behavior of the plasma inside neutron stars. , 1979 .

[47]  B. Carter,et al.  Stationary elastic rotational deformation of a relativistic neutron star model , 1975 .

[48]  P. Anderson,et al.  Pulsar glitches and restlessness as a hard superfluidity phenomenon , 1975, Nature.

[49]  R. Packard.  Pulsar Speedups Related to Metastability of the Superfluid Neutron-Star Core , 1972 .

[50]  D. Pines,et al.  Neutron starquakes and pulsar speedup , 1971 .

[51]  R. Smoluchowski,et al.  Progressive Deformation of the Crust of Pulsars , 1970 .

[52]  D. Pines,et al.  Superfluidity in Neutron Stars , 1969, Nature.

[53]  M. Ruderman.  Neutron Starquakes and Pulsar Periods , 1969, Nature.

[54]  J. Lowell.  CRITICAL SURFACE CURRENT OF A TYPE-II SUPERCONDUCTOR. , 1968 .

[55]  P. D. Gennes,et al.  Superconductivity of metals and alloys , 1966 .