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Related papers: Timing and Evolution of PSR B0950+08

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The way pulsars spin down is not understood in detail, but a number of possible physical mechanisms produce a spin-down rate that scales as a power of the rotation rate ($\dot\nu\propto-\nu^n$), with the power-law index $n$ called the…

Using the standard equation for the slowdown of a neutron star, we derive a formula for the braking index via integration rather than the conventional differentiation. The new formula negates the need to measure the second time derivative…

Astrophysics · Physics 2009-10-31 Simon Johnston , David Galloway

We report on a high-precision timing analysis and an astrophysical study of the binary millisecond pulsar, PSR J1909$-$3744, motivated by the accumulation of data with well improved quality over the past decade. Using 15 years of…

High Energy Astrophysical Phenomena · Physics 2022-11-23 K. Liu , L. Guillemot , A. G. Istrate , L. Shao , T. M. Tauris , N. Wex , J. Antoniadis , A. Chalumeau , I. Cognard , G. Desvignes , P. C. C. Freire , M. S. Kehl , G. Theureau

The longitude separation between adjacent drifting subpulses, $P_2$, is roughly constant for many pulsars. It was then perplexing when pulsar B0809+74 was found to exhibit substantial variations in this measure, both with wavelength and…

Astrophysics · Physics 2009-11-10 Joanna M. Rankin , R. Ramachandran , Svetlana A. Suleymanova

Results of timing measurements of the pulsar PSR B0329+54 obtained in 1968--2012 using the Big Scanning Antenna of the Pushchino Radio Astronomy Observatory (at 102 and 111 MHz), the DSS 13 and DSS 14 telescopes of the Jet Propulsion…

Instrumentation and Methods for Astrophysics · Physics 2017-12-06 E. D. Starovoit , A. E. Rodin

Efforts are made to understand the timing behaviors (e.g., the jumps of the projected pulsar semimajor axis in the periastron passages) observed via 13-year timing for PSR B1259-63. In the first, planet-like objects are suggested to orbit…

Astrophysics · Physics 2014-10-13 R. X. Xu

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

PSR J0205+6449 is a young pulsar in the Crab-like pulsar wind nebula 3C 58 which is thought to be a result of the historical supernova SN1181 CE. The 65.7-ms pulsar is the second most energetic of the known Galactic pulsars and has been…

Stairs, Lyne & Shemar have found that arrival time residuals from PSR B1828-11 vary periodically with a period of 500 days. This behavior can be accounted for by precession of the radiopulsar, an interpretation that is reinforced by the…

Astrophysics · Physics 2016-08-30 Taner Akgun , Bennett Link , Ira Wasserman

The Rossi X-ray Timing Explorer has observed five outbursts from the transient 2.5 ms accretion-powered pulsar SAX J1808.4-3658 during 1998-2008. We present a pulse timing study of the most recent outburst and compare it with the previous…

High Energy Astrophysical Phenomena · Physics 2009-09-28 J. M. Hartman , A. Patruno , D. Chakrabarty , C. B. Markwardt , E. H. Morgan , M. van der Klis , R. Wijnands

PSR B0818-41 is one of the few pulsars which show multiple drift regions having well defined phase relationship. In this paper we report new results from the multifrequency GMRT observations of this pulsar. Significant linear polarization…

Astrophysics · Physics 2015-05-13 Bhaswati Bhattacharyya , Yashwant Gupta , Janusz Gil

We present results and applications of high precision timing measurements of the millisecond pulsar J1012+5307. Combining our radio observations with results based on optical observations, we derive complete 3-D velocity information for…

Astrophysics · Physics 2009-11-06 Ch. Lange , F. Camilo , N. Wex , M. Kramer , D. C. Backer , A. G. Lyne , O. Doroshenko

After Michel (1994) introduced a phenomenological picture of `rapid magnetization' of newly born neutron stars (NSs), Muslimov & Page (1995) suggested that the physical conditions accompanying the formation of a NS may result in the surface…

Astrophysics · Physics 2009-10-28 A. Muslimov , D. Page

We present analysis of the timing noise in PSR J1733-3716, which combines data from Parkes 64-m radio telescope and nearly 15 years of timing data obtained from the Nanshan 25-m radio telescope. The variations in the spin frequency and…

High Energy Astrophysical Phenomena · Physics 2020-11-06 Yue Hu , Lin li , J. P Yuan , S. J Dang , S. Q Wang , Z. J Wang , R. Yuen

For about half a century the radio pulsar population was observed to spin in the ~0.002-12s range, with different pulsar classes having a spin-period evolution that differs substantially depending on their magnetic fields or past accretion…

High Energy Astrophysical Phenomena · Physics 2022-08-17 Michele Ronchi , Nanda Rea , Vanessa Graber , Natasha Hurley-Walker

We present a phase-coherent timing solution for RX J0420.0-5022, the coolest (kT=45 eV) and fastest-spinning (P=3.45 s) of the seven so-called isolated neutron stars (INSs). Using 14 observations with the XMM-Newton spacecraft in 2010-2011,…

High Energy Astrophysical Phenomena · Physics 2015-05-30 David L. Kaplan , Marten H. van Kerkwijk

The Rossi X-ray Timing Explorer ({\sl RXTE}) has made hundreds of observations on three famous young pulsars (PSRs) B0531+21 (Crab), B1509-58, and B0540-69. Using the archive {\sl RXTE} data, we have studied the phase-resolved spectral…

High Energy Astrophysical Phenomena · Physics 2012-04-11 M. Y. Ge , F. J. Lu , J. L. Qu , S. J. Zheng , Y. Chen , D. W. Han

We present an analysis of the accreting X-ray pulsar system 4U 1907+09 based on INTEGRAL data. The main focus of this analysis is a study of the timing behavior of this source. In addition we also show an analysis of the 5-90 keV spectrum.…

Pulsars are famous for their rotational stability. Most of them steadily spin down and display a highly repetitive pulse shape. But some pulsars experience timing irregularities such as nulling, intermittency, mode changing and timing…

High Energy Astrophysical Phenomena · Physics 2015-09-23 Lev Arzamasskiy , Alexander Philippov , Alexander Tchekhovskoy

With the Expanded Long Wavelength Array (ELWA) and pulsar binning techniques, we searched for off-pulse emission from PSR B0950+08 at 76 MHz. Previous studies suggest that off-pulse emission can be due to pulsar wind nebulae (PWNe) in…

High Energy Astrophysical Phenomena · Physics 2020-05-27 D. Ruan , G. B. Taylor , J. Dowell , K. Stovall , F. K. Schinzel , P. B. Demorest