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- W2020249181 abstract "view Abstract Citations (30) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Postglitch Relaxation of the Crab Pulsar: Evidence for Crust Cracking Alpar, M. A. ; Chau, H. F. ; Cheng, K. S. ; Pines, D. Abstract The pattern of glitches and postglitch behavior observed for the Crab pulsar is strikingly different from that observed for the Vela pulsar (Alpar et al. 1993). A key question is whether the differences can be understood on evolutionary grounds. An analysis of the Crab pulsar suggests that this is indeed the case. Thus, we propose that the comparatively modest (Delta Omega/Omega approximately 10-8 and somewhat infrequent (approximately 6 yr inter-glitch intervals) Crab pulsar glitches are caused by starquakes induced by pulsar spin-down (Ruderman 1976; Baym & Pines 1971); we atribute its anomalous postglitch behavior (an occassional extended spin-up and a long-term response opposite in sign to that seen in the Vela pulsar (Lyne et al. 1992) to vorticies transported inward during a quake, while the observed unexpected persistent change in angular acceleration following a glitch represents the creation of a new vortex depletion region, as suggested by Alpar & Pines (1993). Publication: The Astrophysical Journal Pub Date: May 1994 DOI: 10.1086/187357 Bibcode: 1994ApJ...427L..29A Keywords: Astrophysics; Crab Nebula; Cracking (Fracturing); Crusts; Neutron Stars; Pulsars; Relaxation (Mechanics); Starquakes; Stellar Models; Angular Acceleration; Angular Momentum; Angular Velocity; Variations; Astrophysics; DENSE MATTER; STARS: PULSARS: INDIVIDUAL NAME: CRAB PULSAR; STARS: NEUTRON full text sources ADS | data products SIMBAD (4)" @default.
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- W2020249181 title "Postglitch relaxation of the Crab pulsar: Evidence for crust cracking" @default.
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