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相关论文: Glitches: the exact quantum signatures of pulsars …

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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…

量子气体 · 物理学 2024-08-20 Thomas Bland , Francesca Ferlaino , Massimo Mannarelli , Elena Poli , Silvia Trabucco

Pulsars are spinning extremely rapidly with periods as short as about $1.4$ milliseconds and delays of a few milliseconds per year at most, thus providing the most accurate clocks in the Universe. Nevertheless, sudden spin ups have been…

高能天体物理现象 · 物理学 2016-07-21 N. Chamel

Neutron stars or pulsars are very rapidly rotating compact stars with extremely high density. One of the unsolved long-standing problems of these enigmatic celestial bodies is the origin of pulsars' glitches, i.e., the sudden rapid…

高能天体物理现象 · 物理学 2020-10-20 Giacomo Marmorini , Shigehiro Yasui , Muneto Nitta

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…

太阳与恒星天体物理 · 物理学 2015-06-16 Brynmor Haskell , Danai Antonopoulou

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…

高能天体物理现象 · 物理学 2016-03-16 X. Y. Lai , R. X. Xu

The presence of superfluid phases in the interior of a neutron star affects its dynamics, as neutrons can flow relative to the non-superfluid (normal) components of the star with little or no viscosity. A probe of superfluidity comes from…

高能天体物理现象 · 物理学 2023-12-14 Marco Antonelli , Alessandro Montoli , Pierre Pizzochero

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…

高能天体物理现象 · 物理学 2015-06-18 C. M. Espinoza , D. Antonopoulou , B. W. Stappers , A. Watts , A. G. Lyne

Pulsars are rapidly spinning and highly magnetized neutron stars, with highly stable rotational period and gradual spin-down over a long timescale due to the loss of radiation. Glitches refer to the events that suddenly increase the…

高能天体物理现象 · 物理学 2016-07-06 C. W. Ng , J. Takata , K. S. Cheng

Pulsar glitches are thought to be probes of the superfluid interior of neutron stars. These sudden jumps in frequency observed in many pulsars are generally assumed to be the macroscopic manifestation of superfluid vortex motion on a…

高能天体物理现象 · 物理学 2018-08-22 Brynmor Haskell

Glitches are sudden jumps in the spin frequency of pulsars believed to originate in the superfluid interior of neutron stars. Superfluid flow in a model neutron star is simulated by solving the equations of motion of a two-component…

高能天体物理现象 · 物理学 2016-05-25 G. Howitt , B. Haskell , A. Melatos

Radio pulsars provide us with some of the most stable clocks in the universe. Nevertheless several pulsars exhibit sudden spin-up events, known as glitches. More than forty years after their first discovery, the exact origin of these…

太阳与恒星天体物理 · 物理学 2015-02-26 Brynmor Haskell , Andrew Melatos

Many pulsars exhibit a peculiar behaviour in their pulse profile of a sudden increase in their rotational period, which is popularly known as a pulsar glitch. Some of them show giant glitches with relative amplitude $\Delta\Omega/\Omega…

高能天体物理现象 · 物理学 2026-05-05 Yogeesh N. , Anil Kumar , Monika Sinha

Glitches are sudden increases in the rotation rate $\nu$ of neutron stars, which are thought to be driven by the neutron superfluid inside the star. The Vela pulsar presents a comparatively high rate of glitches, with 21 events reported…

高能天体物理现象 · 物理学 2021-05-05 C. M. Espinoza , D. Antonopoulou , R. Dodson , M. Stepanova , A. Scherer

We present a modification of our previous model for the mechanisms underlying the glitch phenomena in pulsars and young neutron stars. Accordingly, pulsars are born with embryonic cores comprising of purely incompressible superconducting…

广义相对论与量子宇宙学 · 物理学 2021-02-24 A. A. Hujeirat , R. Samtaney

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…

高能天体物理现象 · 物理学 2024-01-09 Brynmor Haskell , David Ian Jones

Many radio pulsars exhibit glitches wherein the star's spin rate increases fractionally by $\sim 10^{-10} - 10^{-6}$. Glitches are ascribed to variable coupling between the neutron star crust and its superfluid interior. With the aim of…

天体物理学 · 物理学 2009-11-06 Michelle B. Larson , Bennett Link

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…

高能天体物理现象 · 物理学 2018-02-16 Pierre Pizzochero , Marco Antonelli , Brynmor Haskell , Stefano Seveso

Glitches are sudden changes in rotation frequency and spin-down rate, observed from pulsars of all ages. Standard glitches are characterized by a positive step in angular velocity ($\Delta\Omega$ $ > $ $0$) and a negative step in the…

高能天体物理现象 · 物理学 2015-06-23 O. Akbal , E. Gügercinoğlu , S. Şaşmaz Muş , M. A. 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.…

高能天体物理现象 · 物理学 2013-04-17 J. O. Urama , B. C. Joshi , A. E. 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…

高能天体物理现象 · 物理学 2015-06-11 Enping Zhou
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