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Timing observations from the Parkes 64-m radio telescope for 165 pulsars between 1990 and 2011 have been searched for period glitches. A total of 107 glitches were identified in 36 pulsars, where 61 have previously been reported and 46 are…

High Energy Astrophysical Phenomena · Physics 2012-11-12 M. Yu , R. N. Manchester , G. Hobbs , S. Johnston , V. M. Kaspi , M. Keith , A. G. Lyne , G. J. Qiao , V. Ravi , J. M. Sarkissian , R. Shannon , R. X. Xu

We report on a timing programme of 74 young pulsars that have been observed by the Parkes 64-m radio telescope over the past decade. Using modern Bayesian timing techniques, we have measured the properties of 124 glitches in 52 of these…

Pulsar glitches are unresolved increments of the rotation rate that sometimes trigger an enhancement of the spin-down rate. On occasions, the augmented spin-down decays gradually in an exponential manner, particularly after the largest…

High Energy Astrophysical Phenomena · Physics 2026-02-04 E. Zubieta , C. M. Espinoza , D. Antonopoulou , W. C. G. Ho , L. Kuiper , F. García , S. del Palacio

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 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…

High Energy Astrophysical Phenomena · Physics 2018-12-27 Innocent O. Eya , Johnson O. Urama , Augustine E. Chukwude

The rotation of more than 700 pulsars has been monitored using the 76-m Lovell Telescope at Jodrell Bank. Here we report on a new search for glitches in the observations, revealing 128 new glitches in the rotation of 63 pulsars. Combining…

High Energy Astrophysical Phenomena · Physics 2015-03-18 Cristobal M. Espinoza , Andrew G. Lyne , Ben W. Stappers , Michael Kramer

In Paper I of this series, we detected a significant value of the braking index ($n$) for 19 young, high-$\dot{E}$ radio pulsars using $\sim$ 10 years of timing observations from the 64-m Parkes radio telescope. Here we investigate this…

The young, fast-spinning, X-ray pulsar J0537-6910 displays an extreme glitch activity, with large spin-ups interrupting its decelerating rotation every ~100 days. We present nearly 13 years of timing data from this pulsar, obtained with the…

High Energy Astrophysical Phenomena · Physics 2017-11-08 D. Antonopoulou , C. M. Espinoza , L. Kuiper , N. Andersson

Data are gathered from the Parkes pulsar data archive of twelve young radio pulsars, with the intervals of data for each pulsar ranged between 2.8 years and 6.8 years. 31 glitches are identified by using phase connection from "pulsar…

High Energy Astrophysical Phenomena · Physics 2018-06-15 S. Q. Zhou , J. P. Yuan , J. Zhang , M. Q. Liu , Z. W. Feng. S. J. Dang , X. D. Zhu

A systematic, semi-automated search for pulsar glitches in the first UTMOST public data release is presented. The search is carried out using a hidden Markov model which incorporates both glitches and timing noise into the model of the…

High Energy Astrophysical Phenomena · Physics 2022-03-09 L. Dunn , A. Melatos , S. Suvorova , W. Moran , R. J. Evans , S. Osłowski , M. E. Lower , M. Bailes , C. Flynn , V. Gupta

Pulsar glitch is a phenomenon characterized by abrupt changes in the spin period over less than a minute. We present a comprehensive analysis of glitches in four gamma-ray pulsars by combining the timing observation data from \textit{Fermi}…

High Energy Astrophysical Phenomena · Physics 2025-01-17 P. Liu , J. -P. Yuan , M. -Y. Ge , W. -T. Ye , S. -Q. Zhou , S. -J. Dang , Z. -R. Zhou , E. Gügercinoğlu , Z. H. Tu , P. Wang , A. Li , D. Li , N. Wang

Glitches are rare spin-up events that punctuate the smooth slow-down of the rotation of pulsars. For the Vela pulsar and PSR J0537-6910, the glitch sizes and the times between consecutive events have clear preferred scales, contrary to the…

High Energy Astrophysical Phenomena · Physics 2019-10-02 J. R. Fuentes , C. M. Espinoza , A. Reisenegger

Glitches correspond to sudden jumps of rotation frequency ($\nu$) and its derivative ($\dot{\nu}$) of pulsars, the origin of which remains not well understood yet, partly because the jump processes of most glitches are not well…

High Energy Astrophysical Phenomena · Physics 2020-06-24 M. Y. Ge , S. N. Zhang , F. J. Lu , T. P. Li , J. P. Yuan , X. P. Zheng , Y. Huang , S. J. Zheng , Y. P. Chen , Z. Chang , Y. L. Tuo , Q. Cheng , C. Güngör , L. M. Song , Y. P. Xu , X. L. Cao , Y. Chen , C. Z. Liu , S. Zhang , J. L. Qu , Q. C. Bu , C. Cai , G. Chen , L. Chen , M. Z. Chen , T. X. Chen , Y. B. Chen , W. Cui , W. W. Cui , J. K. Deng , Y. W. Dong , Y. Y. Du , M. X. Fu , G. H. Gao , H. Gao , M. Gao , Y. D. Gu , J. Guan , C. C. Guo , D. W. Han , L. F. Hao , J. Huo , S. M. Jia , L. H. Jiang , W. C. Jiang , C. J. Jin , J. Jin , Y. J. Jin , L. D. Kong , B. Li , D. Li , C. K. Li , G. Li , M. S. Li , W. Li , X. Li , X. B. Li , X. F. Li , Y. G. Li , Z. W. Li , Z. X. Li , Z. Y. Liu , X. H. Liang , J. Y. Liao , G. Q. Liu , H. W. Liu , X. J. Liu , Y. N. Liu , B. Lu , X. F. Lu , Q. Luo , T. Luo , X. Ma , B. Meng , Y. Nang , J. Y. Nie , G. Ou , N. Sai , R. C. Shang , X. Y. Song , L. Sun , Y. Tan , L. Tao , C. Wang , G. F. Wang , J. Wang , J. B. Wang , M. Wang , N. Wang , W. S. Wang , Y. D. Wang , Y. S. Wang , X. Y. Wen , Z. G. Wen , B. B. Wu , B. Y. Wu , M. Wu , G. C. Xiao , S. Xiao , S. L. Xiong , Y. H. Xu , W. M. Yan , J. W. Yang , S. Yang , Y. J. Yang , Y. J. Yang , Q. B. Yi , Q. Q. Yin , Y. You , Y. L. Yue , A. M. Zhang , C. M. Zhang , D. P. Zhang , F. Zhang , H. M. Zhang , J. Zhang , T. Zhang , W. C. Zhang , W. Zhang , W. Z. Zhang , Y. Zhang , Y. F. Zhang , Y. J. Zhang , Y. Zhang , Z. Zhang , Z. Zhang , Z. L. Zhang , H. S. Zhao , X. F. Zhao , W. Zheng , D. K. Zhou , J. F. Zhou , X. Zhou , R. L. Zhuang , Y. X. Zhu , Y. Zhu

The number of sudden spin-ups in radio pulsars known as pulsar glitches has increased over the years. Though a consensus has not been reached with regards to the actual cause of the phenomenon, the electromagnetic braking torque on the…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Innocent O. Eya , Jibrin A. Alhassan , Evaristus U. Iyida , Augustine E. Chukwude , Johnson O. Urama

About 76 glitches in 25 pulsars have been reported to date. Most glitches are `giant', with fractional increases of frequency dnu_0/nu_0 ~ 10^{-6}. 25 glitches were analysed and presented by Shemar & Lyne (1996) who detected them mainly at…

Astrophysics · Physics 2009-11-07 A. Krawczyk , A. G. Lyne , J. A. Gil , B. C. Joshi

Braking index measurements offer the opportunity to explore the processes affecting the long-term spin evolution of pulsars and possible evolutionary connections between the various pulsar populations. For young pulsars the long-term trends…

High Energy Astrophysical Phenomena · Physics 2017-01-18 C. M. Espinoza , A. G. Lyne , B. W. Stappers

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

A microphysics-agnostic meta-model of rotational glitches in rotation-powered pulsars is developed, wherein the globally averaged internal stress accumulates as a Brownian process between glitches, and a glitch is triggered once a critical…

High Energy Astrophysical Phenomena · Physics 2020-04-15 Julian B. Carlin , Andrew Melatos

We study the pulsar timing properties and the data analysis methods during glitch recoveries. In some cases one first fits the time-of-arrivals (TOAs) to obtain the "time-averaged" frequency $\nu$ and its first derivative $\dot\nu$, and…

High Energy Astrophysical Phenomena · Physics 2013-12-12 Yi Xie , Shuang-Nan Zhang

The inter-glitch timing of the Vela pulsar is characterized by a constant second derivative of the rotation rate. This takes over after the post-glitch exponential relaxation, and is completed at about the time of the next glitch. The…

High Energy Astrophysical Phenomena · Physics 2017-06-06 Onur Akbal , M. Ali Alpar , Sarah Buchner , David Pines
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