中文
相关论文

相关论文: On the detection probability of neutron star glitc…

200 篇论文

(abridged) Observations of very high speeds among pulsars in the Galactic disk present a puzzle regarding neutron stars in globular clusters. The inferred characteristic speed of single pulsars in the Galaxy is $\sim 5-10$ times as large as…

天体物理学 · 物理学 2009-11-06 Eric Pfahl , Saul Rappaport , Philipp Podsiadlowski

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

We present timing solutions from the Fermi-LAT observations of gamma-ray pulsars PSR J0835$-$4510 (Vela), PSR J1023$-$5746, PSR J2111$+$4606, and PSR J2229$+$6114. Data ranges for each pulsar extend over a decade. From data analysis we have…

高能天体物理现象 · 物理学 2022-02-02 E. Gügercinoğlu , M. Y. Ge , J. P. Yuan , S. Q. Zhou

We consider the pulsar rotation assuming that the neutron star consists of crust component (which rotation is observed) and two core components. One of the core components contains pinned superfluid which can, for some reasons, suddenly…

高能天体物理现象 · 物理学 2018-01-19 D. P. Barsukov , O. A. Goglichidze , K. Y. Kraav , M. V. Vorontsov

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…

高能天体物理现象 · 物理学 2025-06-03 A. G. Panin , E. V. Sokolova

Continuous gravitational-wave signals from isolated non-axisymmetric rotating neutron stars may undergo episodic spin-up events known as glitches. If unmodelled by a search, these can result in missed or misidentified detections. We outline…

广义相对论与量子宇宙学 · 物理学 2018-09-26 Gregory Ashton , Reinhard Prix , Ian Jones

Timing observations of rapidly rotating neutron stars revealed a great number of glitches, observed both from canonical radio pulsars and magnetars. Among them, 76 glitches have shown exponential relaxation(s) with characteristic decay…

高能天体物理现象 · 物理学 2017-07-27 Erbil Gügercinoğlu

While pulsars possess exceptional rotational stability, large scale timing studies have revealed at least two distinct types of irregularities in their rotation: red timing noise and glitches. Using modern Bayesian techniques, we…

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

We investigate the chances that neutron stars act as the lense in a gravitational microlensing event towards the galactic bulge or a spiral arm. The observation of neutron stars by means of gravitational microlensing would allow the…

天体物理学 · 物理学 2009-11-07 Dominik J. Schwarz , Dirk Seidel

The study of pulsar glitches provides a unique window into the internal structure and dynamic processes of neutron stars. PSR J0007+7303, a very bright gamma-ray pulsar, is the first pulsar discovered by the Fermi-LAT telescope. In this…

We present a theoretical background for the data analysis of the gravitational-wave signals from spinning neutron stars for Earth-based laser interferometric detectors. We introduce a detailed model of the signal including both the…

广义相对论与量子宇宙学 · 物理学 2009-12-30 Piotr Jaranowski , Andrzej Królak , Bernard F. Schutz

We report the detection of a sudden spin-up of the 11 s anomalous X-ray pulsar 1RXS J170849.0-4000910 in regular timing observations made with the Rossi X-ray Timing Explorer. The event, which occurred between MJD 51446 (1999 September 25)…

天体物理学 · 物理学 2009-10-31 V. M. Kaspi , J. R. Lackey , D. Chakrabarty

Many pulsars are observed to "glitch", i.e. show sudden jumps in their rotational frequency $\nu$, some of which can be as large as $\Delta \nu/\nu\approx 10^{-6}-10^{-5}$ in a subset of pulsars known as giant glitchers. Recently Pizzochero…

太阳与恒星天体物理 · 物理学 2015-06-05 Stefano Seveso , Pierre M. Pizzochero , Brynmor Haskell

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

The abrupt change in the pulse period of a pulsar is called a pulsar glitch. In this paper, we present eleven pulsar glitches detected using the Ooty Radio Telescope (ORT) and the upgraded Giant Metrewave Radio Telescope (uGMRT) in high…

We address the issues of crustal properties of neutron stars such as crustal mass, crustal radius, crustal fraction of moment of inertia and investigate the crustal and structural properties related to the glitching mechanism observed in…

核理论 · 物理学 2024-01-31 Joydev Lahiri , Debasis Atta , D. N. Basu

The glitch size, $ \Delta\nu/\nu $, inter-glitch time interval, $ t_{i} $ and frequency of glitches in pulsars are key parameters in discussing glitch phenomena. In this paper, the glitch sizes and inter-glitch time intervals were…

高能天体物理现象 · 物理学 2018-12-27 Innocent O. Eya , Johnson O. Urama , Augustine E. Chukwude

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

Glitch size and waiting time probability density functions (PDFs) are estimated for the five pulsars that have glitched most using the nonparametric kernel density estimator. Two objects exhibit decreasing size and waiting time PDFs. Their…

高能天体物理现象 · 物理学 2018-11-07 G. Howitt , A. Melatos , A. Delaigle