Postglitch relaxation of the VELA pulsar after its first eight large glitches - A reevaluation with the vortex creep model
1993; IOP Publishing; Volume: 409; Linguagem: Inglês
10.1086/172668
ISSN1538-4357
AutoresM. A. Alpar, H. F. Chau, K. S. Cheng, David Pines,
Tópico(s)Pulsars and Gravitational Waves Research
Resumoview Abstract Citations (174) References (44) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Postglitch Relaxation of the VELA Pulsar after Its First Eight Large Glitches: A Reevaluation with the Vortex Creep Model Alpar, M. A. ; Chau, H. F. ; Cheng, K. S. ; Pines, David Abstract In the present reinterpretation of eight of the nine glitches observed from the Vela pulsar, all glitch data sets may be described in terms of the distinct components of short and intermediate time scale exponential relaxation, followed by long-term recovery. The two former components' exponential relaxation is now interpreted as the linear response of vortex creep in those regions of the pinned superfluid in the neutron star crust through which no sudden motion occurred at the time of the glitch. The tendency of glitches to leave permanent spin-up remnants is seen as the result of a discrete internal torque which couples part of the crustal superfluid to the observed crust in glitches. Publication: The Astrophysical Journal Pub Date: May 1993 DOI: 10.1086/172668 Bibcode: 1993ApJ...409..345A Keywords: Equations Of State; Neutron Stars; Pulsars; Relaxation Time; Vortices; Angular Momentum; Magnetic Signatures; Stellar Models; Astrophysics; DENSE MATTER; STARS: PULSARS: INDIVIDUAL NAME: VELA PULSAR; STARS: NEUTRON full text sources ADS | data products SIMBAD (1)
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