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Related papers: Timing and Evolution of PSR B0950+08

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We discuss the unique spin evolution of the young X-ray pulsar PSR J0537-6910, a system in which the regular spin down is interrupted by glitches every few months. Drawing on the complete timing data from the Rossi X-ray Timing Explorer…

High Energy Astrophysical Phenomena · Physics 2018-09-13 N. Andersson , D. Antonopoulou , C. M. Espinoza , B. Haskell , W. C. G. Ho

We have carried out high-precision timing measurements of the binary millisecond pulsar PSR J2051$-$0827 with the Effelsberg 100-m radio telescope of the Max-Planck-Institut f\"ur Radioastronomie and with the Lovell 76-m radio telescope at…

Astrophysics · Physics 2009-11-07 O. Doroshenko , O. Loehmer , M. Kramer , A. Jessner , R. Wielebinski , A. G. Lyne , Ch. Lange

The recent temperature measurements of the two older isolated neutron stars PSR 1929+10 and PSR 0950+08 (ages of $3\times 10^6$ and $2\times 10^7$ yr, respectively) indicate that these objects are heated. A promising candidate heat source…

Astrophysics · Physics 2009-10-31 Michelle B. Larson , Bennett Link

Using pulsewidth data for 872 isolated radio pulsars we test the hypothesis that pulsars evolve through a progressive narrowing of the emission cone combined with progressive alignment of the spin and magnetic axes. The new data provide…

High Energy Astrophysical Phenomena · Physics 2015-05-14 Matthew D. T. Young , Lee S. Chan , Ron R. Burman , David G. Blair

Accreting Millisecond X-ray Pulsars like IGR J00291+5934 are important because it is possible to test theories of pulsar formation and evolution. They give also the possibility to constrain gravitational wave emission theories and the…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Alessandro Patruno

We have carried out high-precision timing observations of the eclipsing binary PSR J2051-0827 in the 3.3 years since its discovery. These data indicate that the orbital period is decreasing at a rate of dPb/dt = (-11+-1)X10^-12. If secular,…

Astrophysics · Physics 2009-10-30 B. W. Stappers , M. Bailes , R. N. Manchester , J. S. Sandhu , M. Toscano

The smooth spin-down of young pulsars is perturbed by two non-deterministic phenomenon, glitches and timing noise. Although the timing noise provides insights into nuclear and plasma physics at extreme densities, it acts as a barrier to…

High Energy Astrophysical Phenomena · Physics 2019-09-25 A. Parthasarathy , R. M. Shannon , S. Johnston , L. Lentati , M. Bailes , S. Dai , M. Kerr , R. N. Manchester , S. Oslowski , C. Sobey , W. van Straten , P. Weltevrede

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

PSR B0943+10 is a mode-switching radio pulsar characterized by two emission modes with different radio and X-ray properties. Previous studies, based on simple combinations of blackbody and power law models, showed that its X-ray flux can be…

High Energy Astrophysical Phenomena · Physics 2019-02-13 Michela Rigoselli , Sandro Mereghetti , Roberto Turolla , Roberto Taverna , Valery Suleimanov , Alexander Y. Potekhin

X-ray observations of the accreting X-ray pulsar 4U~1907+09, obtained during February 1996 with the Proportional Counter Array on the Rossi X-ray Timing Experiment (RXTE), have enabled the first measurement of the intrinsic pulse period…

Astrophysics · Physics 2009-10-30 J. J. M. in 't Zand , A. Baykal , T. E. Strohmayer

As one of the paradigm examples to probe into pulsar magnetospheric dynamics, PSR B0943+10 (J0946+0951) manifests representatively, showing mode switch, orthogonal polarization and subpulse drifting, frequently studied below 600 MHz. Here…

High Energy Astrophysical Phenomena · Physics 2024-09-19 Shunshun Cao , Jinchen Jiang , Jaroslaw Dyks , Longfei Hao , Kejia Lee , Zhixuan Li , Jiguang Lu , Zhichen Pan , Weiyang Wang , Zhengli Wang , Jiangwei Xu , Heng Xu , Renxin Xu

The X-ray Pulsar PSR J1811-1925 in the historic supernova remnant G11.2-0.3 has a characteristic age over 10 times the age of the remnant. This likely implies that its current spin period, 65 ms, is close to its birth spin period.…

Astrophysics · Physics 2009-11-07 F. P. Gavriil , V. M. Kaspi , M. S. E. Roberts

We present results of timing measurements of the binary millisecond pulsar PSR J2145-0750. Combining timing data obtained with the Effelsberg and Lovell radio telescopes we measure a significant timing parallax of 2.0(6) mas placing the…

Astrophysics · Physics 2009-11-10 O. Loehmer , M. Kramer , T. Driebe , A. Jessner , D. Mitra , A. G. Lyne

We study the possibility that the long term red timing-noise in pulsars originates from the evolution of the magnetic inclination angle $\chi$. The braking torque under consideration is a combination of the dipole radiation and the current…

High Energy Astrophysical Phenomena · Physics 2015-10-23 Shu-Xu Yi , Shuang-Nan Zhang

Utilizing four archival X-ray datasets taken with the Hard X-ray Detector onboard Suzaku, timing studies were performed on three magnetars, 1E 1841-045 (observed in 2006), SGR 0501+4516 (2008), and 1RXS J170849.0-400910 (2009 and 2010).…

High Energy Astrophysical Phenomena · Physics 2024-07-23 Kazuo Makishima , Nagomi Uchida , Teruaki Enoto

In this work, we interpreted the high braking index of PSR J1640$-$4631 with a combination of the magneto-dipole radiation and dipole magnetic field decay models. By introducing a mean rotation energy conversion coefficient…

High Energy Astrophysical Phenomena · Physics 2017-11-10 Zhi-Fu Gao , Na Wang , Hao Shan , Xiang-Dong Li , Wei Wang

We report on simultaneous X-ray and radio observations of the radio-mode-switching pulsar PSR B1822-09 with ESA's XMM-Newton and the WSRT, GMRT and Lovell radio telescopes. PSR B1822-09 switches between a radio-bright and radio-quiet mode,…

High Energy Astrophysical Phenomena · Physics 2017-01-18 W. Hermsen , L. Kuiper , J. W. T. Hessels , D. Mitra , J. M. Rankin , B. W. Stappers , G. A. E. Wright , R. Basu , A. Szary , J. van Leeuwen

We have completed part of a program to study the X-ray emission properties of old rotation-powered pulsars with XMM-Newton in order to probe and identify the origin of their X-radiation. The X-ray emission from these old pulsars is largely…

We analyze all X-ray timing data on 1E 1207.4-5209 in supernova remnant PKS 1209-51/52 gathered in 2000-2005, and find a highly stable rotation with P=424.130451(4) ms and period derivative of (9.6 +/- 9.4)E-17 s/s. This refutes previous…

Astrophysics · Physics 2009-11-13 E. V. Gotthelf , J. P. Halpern