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Related papers: Have we seen all glitches?

200 papers

Glitches, spin-up events in neutron stars, are of prime interest as they reveal properties of nuclear matter at subnuclear densities. We numerically investigate the glitch mechanism due to vortex unpinning using analogies between neutron…

Continuous gravitational waves from neutron stars could provide an invaluable resource to learn about their interior physics. A common search method involves matched filtering a modeled template against the noisy gravitational-wave data to…

General Relativity and Quantum Cosmology · Physics 2017-09-26 Gregory Ashton , Reinhard Prix , David Ian Jones

Timing observations from the Nanshan 26-m radio telescope for nine pulsars between 2000 and 2014 have been used to search for glitches. The data span for nine pulsars ranges from 11.6 to 14.2 years. From the total of 114 yr of pulsar…

High Energy Physics - Phenomenology · Physics 2022-08-17 Zu-Rong Zhou , Jing-Bo Wang , Na Wang , Jian-Ping Yuan , Fei-Fei Kou , Shi-Jun Dang

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 rapid spin-up events that occur in the rotation of neutron stars, providing a valuable probe into the physics of the interiors of these objects. Long-term monitoring of a large number of pulsars facilitates the detection…

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…

High Energy Astrophysical Phenomena · Physics 2023-12-14 Marco Antonelli , Alessandro Montoli , Pierre Pizzochero

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…

High Energy Astrophysical Phenomena · Physics 2021-05-05 C. M. Espinoza , D. Antonopoulou , R. Dodson , M. Stepanova , A. Scherer

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…

High Energy Astrophysical Phenomena · Physics 2020-02-12 Alessandro Montoli , Marco Antonelli , Pierre Pizzochero

We present a statistical study of the glitch population and the behaviour of the glitch activity across the known population of neutron stars. An unbiased glitch database was put together based on systematic searches of radio timing data of…

High Energy Astrophysical Phenomena · Physics 2018-07-16 J. R. Fuentes , C. M. Espinoza , A. Reisenegger , B. W. Stappers , B. Shaw , A. G. Lyne

In certain pulsar timing experiments, where observations are scheduled approximately periodically (e.g. daily), timing models with significantly different frequencies (including but not limited to glitch models with different frequency…

High Energy Astrophysical Phenomena · Physics 2021-04-28 Liam Dunn , Marcus E. Lower , Andrew Melatos

Glitches detected in pulsar timing observations at the Nanshan radio telescope of Urumqi Observatory between 2002 July and 2008 December are presented. In total, 29 glitches were detected in 19 young pulsars, with this being the first…

Astrophysics of Galaxies · Physics 2015-05-14 J. P. Yuan , N. Wang , R. N. Manchester , Z. Y. Liu

The long-term evolution of the relative rotation of the core superfluid in a neutron star with respect to the rest of the star, at different radial distances from the rotation axis, is determined through model calculations. The core…

Astrophysics · Physics 2015-06-24 M. Jahan-Miri

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…

High Energy Astrophysical Phenomena · Physics 2017-06-29 D. I. Jones , G. Ashton , R. Prix

The first known pulsar glitch was discovered in the Vela pulsar at both Parkes and Goldstone in March 1969. Since then the number of known glitches has grown enormously, with more than 520 glitches now known in more than 180 pulsars.…

High Energy Astrophysical Phenomena · Physics 2018-01-16 R N Manchester

Pulsars are known for their superb timing precision, although glitches can interrupt the regular timing behavior when the stars are young. These glitches are thought to be caused by interactions between normal and superfluid matter in the…

Solar and Stellar Astrophysics · Physics 2015-10-05 Wynn C. G. Ho , Cristobal M. Espinoza , Danai Antonopoulou , Nils Andersson

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

A comprehensive new approach is presented for deriving probability densities of physical properties characterizing lens or source that constitute an observed galactic microlensing event. While previously encountered problems are overcome,…

Astrophysics · Physics 2009-11-11 M. Dominik

Young pulsars deviate from a perfectly regular spin-down by two non-deterministic phenomena: impulsive glitches and timing noise. Both phenomena are interesting per se, and may provide insights into the superfluid properties of neutron…

High Energy Astrophysical Phenomena · Physics 2023-02-17 Marco Antonelli , Avishek Basu , Brynmor Haskell

Context. Pulsars have a very stable rotation. However, sudden increases in their rotation frequency known as glitches, perturb their evolution. While large glitches are commonly detected, small glitches are harder to detect because of the…

High Energy Astrophysical Phenomena · Physics 2024-06-26 E. Zubieta , F. Garcia , S. del Palacio , S. B. Araujo Furlan , G. Gancio , C. O. Lousto , J. A. Combi , C. M. Espinoza

Mature neutron stars are expected to have several superfluid components. Strong evidence for this is provided by the glitches that have been observed in dozens of pulsars. The underlying idea behind most glitch models is that, as the…

Astrophysics · Physics 2009-11-07 N. Andersson , G. L. Comer , R. Prix