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The velocity and density distribution of $e^\pm$ in the pulsar wind are crucial distinction among magnetosphere models, and contains key parameters determining the high energy emission of pulsar binaries. In this work, a direct method is…

High Energy Astrophysical Phenomena · Physics 2017-10-11 Shu-Xu Yi , K. S. Cheng

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

We describe PSR J1926-0652, a pulsar recently discovered with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Using sensitive single-pulse detections from FAST and long-term timing observations from the Parkes 64-m radio…

We present 3 yr of timing observations for PSR J1453+1902, a 5.79-ms pulsar discovered during a 430-MHz drift-scan survey with the Arecibo telescope. Our observations show that PSR J1453+1902 is solitary and has a proper motion of 8(2)…

Astrophysics · Physics 2009-06-23 D. R. Lorimer , M. A. McLaughlin , D. J. Champion , I. H. Stairs

We present an analysis of $23~$yr of pulse arrival times for PSR B1259$-$63. The pulsar is in a binary orbit about its approximately $20~M_{\odot}$ companion LS$~$2883. Our best-fitting timing solution has none of the pulse-number…

Solar and Stellar Astrophysics · Physics 2015-06-17 R. M. Shannon , S. Johnston , R. N. Manchester

We present an updated timing solution and an analysis of the profile evolution - including precession and beam shape - of the young, relativistic binary pulsar J1906+0746. The 144-ms pulsar, in a 3.98-hour orbit with eccentricity 0.085…

Astrophysics · Physics 2019-08-14 L. E. Kasian

We present the results of a timing analysis undertaken with the goal of obtaining an improved mass measurement of the recycled pulsar J2045+3633. Using regular high-cadence observations with the Effelsberg, Nan\c{c}ay, and Lovell radio…

We report on the detection of a 400.99018734(1) Hz coherent signal in the Rossi X-ray Timing Explorer light curves of the recently discovered X-ray transient, IGR J17498-2921. By analysing the frequency modulation caused by the orbital…

High Energy Astrophysical Phenomena · Physics 2015-06-03 A. Papitto , E. Bozzo , C. Ferrigno , T. M. Belloni , L. Burderi , T. Di Salvo , A. Riggio , A. D'Aì , R. Iaria

PSR J1024$-$0719 is a millisecond pulsar that was long thought to be isolated. However, puzzling results concerning its velocity, distance, and low rotational period derivative have led to reexamination of its properties. We present updated…

We present phase-connected timing ephemerides, polarization pulse profiles and Faraday rotation measurements of 12 pulsars discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST…

We present the Robert C. Byrd Green Bank Telescope discovery of the highly eccentric binary millisecond pulsar PSR J1835$-$3259A in the Fermi Large Area Telescope-detected globular cluster NGC 6652. Timing over one orbit yields the pulse…

High Energy Astrophysical Phenomena · Physics 2015-07-15 Megan E. DeCesar , Scott M. Ransom , David L. Kaplan , Paul S. Ray , Aaron M. Geller

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 have analyzed single pulses from PSR J0737-3039B, the 2.8-s pulsar in the recently discovered double pulsar system, using data taken with the Green Bank Telescope at 820 and 1400 MHz. We report the detection of features similar to…

PSR J1903+0327 is a mili-second pulsar with a mass of 1.67 M_{\odot} in a highly eccentric orbit (e=0.44) around a main-sequence star. This unique system cannot be reconciled with current observations where milli-second pulsars are…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Juthika Khargharia , John T. Stocke , Cynthia S. Froning , Achamveedu Gopakumar , Bhal Chandra Joshi

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 timing models for 20 millisecond pulsars in the Parkes Pulsar Timing Array. The precision of the parameter measurements in these models has been improved over earlier results by using longer data sets and modelling the…

PSR J1618-3921 is one of five known millisecond pulsars (MSPs) in eccentric orbits (eMPSs) located in the Galactic plane, whose formation is poorly understood. Earlier studies of these objects revealed significant discrepancies between…

PSR J0751+1807 is a millisecond pulsar in a circular 6 hr binary system with a helium white dwarf secondary. Through high precision pulse timing measurements with the Arecibo and Effelsberg radio telescopes, we have detected the decay of…

We report on a coherent timing analysis of the 163 Hz accreting millisecond X-ray pulsar IGR J17062-6143. Using data collected with the Neutron Star Interior Composition Explorer and XMM-Newton, we investigated the pulsar evolution over a…

High Energy Astrophysical Phenomena · Physics 2021-05-19 Peter Bult , Tod E. Strohmayer , Christian Malacaria , Mason Ng , Zorawar Wadiasingh

We report on 22 yrs of radio timing observations of the millisecond pulsar J1024$-$0719 by the telescopes participating in the European Pulsar Timing Array (EPTA). These observations reveal a significant second derivative of the pulsar spin…