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相关论文: Glitching pulsars: unraveling the interactions of …

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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…

太阳与恒星天体物理 · 物理学 2015-06-05 N. Andersson , K. Glampedakis , W. C. G. Ho , C. M. Espinoza

A glitch of a pulsar is known as a sudden increase in the spin frequency and spin-down rate (frequency time derivative), and it can be caused by a sudden rel\ ease of the stress built up in the solid crust of the star or pinned vortices in…

高能天体物理现象 · 物理学 2017-06-28 J. Zhao , C. W. Ng , L. C. C. Lin , J. Takata , Y. Cai , C. P. Hu , D. C. C. Yen , P. H. T. Tam , C. Y. Hui , A. K. H. Kong , K. S. Cheng

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

Glitches are common phenomena in pulsars. After each glitch, there is usually a permanent increase in the pulsar's spin-down rate. Therefore a pulsar's present spin-down rate may be much higher than its initial value. Thus the…

天体物理学 · 物理学 2007-05-23 J. R. Lin , S. N. Zhang

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

Glitches are sudden spin-up events of pulsars and are usually thought to be induced by unpinning of neutron superfluid vortices in pulsar crusts. Unpinning and repinning of superfluid vortices, and even thermoelectric effects induced by the…

高能天体物理现象 · 物理学 2023-07-13 Shuang Du

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

We develop a theoretical framework that allows us to explore the coupled motion of neutron-superfluid vortices and proton-superconductor flux tubes in a gravitationally collapsed condensate, which describe neutron stars that form pulsars.…

高能天体物理现象 · 物理学 2024-10-16 Sanjay Shukla , Marc E. Brachet , Rahul Pandit

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…

高能天体物理现象 · 物理学 2025-01-07 Pei-Xin Zhu , Xiao-Ping Zheng

Modeling the dynamics of the quantum fluids within a spinning-down neutron star gives a description consistent with observed pulsar magnetic field evolution and spin-period "glitches." The long-standing problem of large predicted excesses…

天体物理学 · 物理学 2007-05-23 M. Ruderman

The timing properties of radio pulsars provide a unique probe of neutron star interiors. Recent observations have uncovered quasiperiodicities in the timing and pulse properties of some pulsars, a phenomenon that has often been attributed…

高能天体物理现象 · 物理学 2017-06-29 D. I. Jones , G. Ashton , R. Prix

Pulsars are spinning neutron stars with very regular periods. These pulsars have, however, had instances where they exhibit a change in their periods. Older theories have shown that older pulsars have a tendency to skip and speed up. Newer…

高能天体物理现象 · 物理学 2022-04-19 Clayton Miller

Isolated neutron stars undergoing non-radial oscillations are expected to emit gravitational waves in the kilohertz frequency range. To date, radio astronomers have located about 1,300 pulsars, and can estimate that there are about 2 times…

天体物理学 · 物理学 2010-11-19 G. L. Comer

Pulsars are highly magnetized rotating neutron stars with a very stable rotation speed. Irrespective of their stable rotation rate, many pulsars have been observed with the sudden jump in the rotation rate, which is known as pulsar glitch.…

高能天体物理现象 · 物理学 2018-10-24 Avishek Basu , Prasanta Char , Rana Nandi , Bhal Chandra Joshi , Debades Bandyopadhyay

Observations of pulsar glitches may provide insights on the internal physics of neutron stars and recent studies show how it is in principle possible to constrain pulsar masses with timing observations. The reliability of these estimates…

高能天体物理现象 · 物理学 2020-02-12 Alessandro Montoli , Marco Antonelli , Pierre Pizzochero

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

After some post-natal cooling, a spinning, magnetized, canonical neutron-star (NS) has a core of superconducting protons, superfluid neutrons, and degenerate extreme relativistic electrons, all surrounded by a thin highly conducting solid…

天体物理学 · 物理学 2007-05-23 Malvin Ruderman

$\sim 6\%$ of all known pulsars have been observed to exhibit sudden spin-up events, known as glitches. For more than fifty years, these phenomena have played an important role in helping to understand pulsar (astro)physics. Based on the…

高能天体物理现象 · 物理学 2022-11-28 Shiqi Zhou , Erbil Gügercinoğlu , Jianping Yuan , Mingyu Ge , Cong Yu

During the spin-up phase of a large pulsar glitch - a sudden decrease of the rotational period of a neutron star - the angular velocity of the star may overshoot, namely reach values greater than that observed for the new post-glitch…

高能天体物理现象 · 物理学 2020-04-29 Pierre Pizzochero , Alessandro Montoli , Marco Antonelli

In the outer core of neutron stars, $^3$P$_2$ superfluid neutrons and $^1$S$_0$ superconducting protons are deemed to exist, forming quantum vortices and magnetic fluxtubes, respectively. Those quantum vortices and fluxtubes play an…

核理论 · 物理学 2025-12-30 Tatsuhiro Hattori , Kazuyuki Sekizawa