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Glitches have been frequently observed in neutron stars. Previously these glitches unexceptionally manifest as sudden spin-ups that can be explained as due to impulsive transfer of angular momentum from the interior superfluid component to…

High Energy Astrophysical Phenomena · Physics 2014-02-03 Y. F. Huang , J. J. Geng

Pulsar glitches, i.e. the sudden spin-ups of pulsars, have been detected for most pulsars that we known. The mechanism giving rise to this kind of phenomenon is uncertain, although a large data set has been built. In the framework of…

High Energy Astrophysical Phenomena · Physics 2016-03-16 X. Y. Lai , R. X. Xu

Pulsar glitches are sudden increases in the spin frequency of an otherwise steadily spinning down neutron star. These events are thought to represent a direct probe of the dynamics of the superfluid interior of the star. However glitches…

Solar and Stellar Astrophysics · Physics 2015-06-16 Brynmor Haskell , Danai Antonopoulou

Spinning neutron stars, when observed as pulsars, are seen to undergo occasional spin-up events known as glitches. Despite several decades of study, the physical mechanisms responsible for glitches are still not well understood, but…

High Energy Astrophysical Phenomena · Physics 2024-01-09 Brynmor Haskell , David Ian Jones

Strange Nuggets are believed to be among the relics of the early universe. They appear as dark matter due to their low charge-to-mass ratio. Their distribution is believed to be the same as that of dark matter. As such, they could be…

High Energy Astrophysical Phenomena · Physics 2020-07-10 Innocent Okwudili Eya , Evaristus Uzochukwu Iyida , Johnson Ozoemene , Urama , Augustine Ejikeme Chukwude

Glitch (sudden spinup) is a common phenomenon in pulsar observations. However, the physical mechanism of glitch is still a matter of debate because it depends on the puzzle of pulsar's inner structure, i.e., the equation of state of dense…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Enping Zhou

Glitch (sudden spinup) is a common phenomenon in pulsar observations. However, the physical mechanism of glitch is still a matter of debate because it depends on the puzzle of pulsar's inner structure, i.e., the equation of state of dense…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Enping Zhou , Jiguang Lu , Hao Tong , Renxin Xu

The study of pulsar glitch phenomena serves as a valuable probe into the dynamic properties of matter under extreme high-density conditions, offering insights into the physics within neutron stars. Providing theoretical explanations for the…

High Energy Astrophysical Phenomena · Physics 2025-01-07 Pei-Xin Zhu , Xiao-Ping Zheng

Recently reported observations of magnetar glitches and coincident X-ray long term brightening events establish enough of a data base to indicate that the brightening events are accompanied by glitches at their outset, and that they are…

High Energy Astrophysical Phenomena · Physics 2010-02-14 David Eichler , Rashid Shaisultanov

Pulsar glitches are traditionally viewed as a manifestation of vortex dynamics associated with a neutron superfluid reservoir confined to the inner crust of the star. In this Letter we show that the non-dissipative entrainment coupling…

Solar and Stellar Astrophysics · Physics 2015-06-05 N. Andersson , K. Glampedakis , W. C. G. Ho , C. M. Espinoza

Observations of pulsar glitches have the potential to provide constraints on the dynamics of the high density interior of neutron stars. However, to do so, realistic glitch models must be constructed and compared to the data. We take a step…

High Energy Astrophysical Phenomena · Physics 2020-08-05 Thomas Celora , Vadym Khomenko , Marco Antonelli , Brynmor Haskell

Several glitches have been observed in young, isolated radio pulsars, while a clear detection in accretion-powered X-ray pulsars is still lacking. We use the Pizzochero snowplow model for pulsar glitches as well as starquake models to…

High Energy Astrophysical Phenomena · Physics 2015-06-11 L. Ducci , P. M. Pizzochero , V. Doroshenko , A. Santangelo , S. Mereghetti , C. Ferrigno

Glitches are sudden spin-up events that interrupt the gradual spin-down of rotating neutron stars. They are believed to arise from the rapid unpinning of vortices in the neutron star inner crust. The analogy between the inner crust of…

Quantum Gases · Physics 2024-08-20 Thomas Bland , Francesca Ferlaino , Massimo Mannarelli , Elena Poli , Silvia Trabucco

Pulsar glitches, sudden jumps in frequency in otherwise steadily spinning down radio pulsars, offer a unique glimpse into the superfluid interior of neutron stars. The exact trigger of these events remains, however, elusive and this has…

High Energy Astrophysical Phenomena · Physics 2018-02-16 Pierre Pizzochero , Marco Antonelli , Brynmor Haskell , Stefano Seveso

TThe glitch of anomalous X-ray pulsars \& soft gamma repeaters (AXP/SGRs) usually accompanied with detectable energy releases manifesting as X-ray bursts or outbursts, while the glitch of some pulsars like Vela release negligible energy. We…

High Energy Astrophysical Phenomena · Physics 2015-12-21 Jiguang Lu , Enping Zhou

Context. A small number of pulsar glitches have been identified as anti-glitches or spin-down glitches, where the overall contribution to the pulsar's rotation frequency is negative. A notable example of a spin-down glitch was observed in…

High Energy Astrophysical Phenomena · Physics 2025-06-03 A. G. Panin , E. V. Sokolova

We investigate the electromagnetic signals accompanied with planetary collisions and their event rate, and explore the possibility of directly detecting such events. A typical Earth--Jupiter collision would give rise to a prompt…

Astrophysics · Physics 2009-11-10 Bing Zhang , Steinn Sigurdsson

Large pulsar glitches seem to be common to all radio pulsars and to exhibit a universal behaviour connecting the rate of occurrence, event size and interglitch relaxation that can be explained if the glitches are due to angular momentum…

Astrophysics · Physics 2007-05-23 M. Ali Alpar

Observations of pulsar glitches remain a powerful tool for studying the interior of neutron stars. Many of the observed glitch properties are shown to result from the evolution of glitches in the different manifestations of neutron stars.…

High Energy Astrophysical Phenomena · Physics 2013-04-17 J. O. Urama , B. C. Joshi , A. E. Chukwude

Glitches are sudden spin-up events that punctuate the steady spin down of pulsars and are thought to be due to the presence of a superfluid component within neutron stars. The precise glitch mechanism and its trigger, however, remain…

High Energy Astrophysical Phenomena · Physics 2015-06-18 C. M. Espinoza , D. Antonopoulou , B. W. Stappers , A. Watts , A. G. Lyne
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