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Related papers: The Parkes Pulsar Timing Array Project: Second dat…

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Massive black holes are key components of the assembly and evolution of cosmic structures and a number of surveys are currently on-going or planned to probe the demographics of these objects and to gain insight into the relevant physical…

Astrophysics · Physics 2009-11-13 A. Sesana , A. Vecchio , M. Volonteri

We reprocessed the Parkes Multibeam Pulsar Survey, searching for single pulses out to a DM of 5000 pc cm$^{-3}$ with widths of up to one second. We recorded single pulses from 264 known pulsars and 14 Rotating Radio Transients. We produced…

High Energy Astrophysical Phenomena · Physics 2018-07-25 Mitchell B. Mickaliger , Alex E. McEwen , Maura A. McLaughlin , Duncan R. Lorimer

Observing and timing a group of millisecond pulsars (MSPs) with high rotational stability enables the direct detection of gravitational waves (GWs). The GW signals can be identified from the spatial correlations encoded in the…

The major programme for observing young, non-recycled pulsars with the Parkes telescope has transitioned from a narrow-band system to an ultra-wideband system capable of observing between 704 and 4032 MHz. We report here on the initial two…

High Energy Astrophysical Phenomena · Physics 2021-02-10 Simon Johnston , C. Sobey , S. Dai , M. Keith , M. Kerr , R. N. Manchester , L. S. Oswald , A. Parthasarathy , R. M. Shannon , P. Weltevrede

High-precision measurements of the pulsar dispersion measure (DM) are possible using telescopes with low-frequency wideband receivers. We present an initial study of the application of the wideband timing technique, which can simultaneously…

Timing observations are crucial for determining the basic parameters of newly discovered pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) with the L-band 19-beam receiver covering the frequency range of…

High Energy Astrophysical Phenomena · Physics 2023-10-12 W. Q. Su , J. L. Han , P. F. Wang , J. P. Yuan , Chen Wang , D. J. Zhou , Tao Wang , Yi Yan , W. C. Jing , Z. L. Yang , N. N. Cai , Xue Chen , Jun Xu , Lang Xie , H. G. Wang , R. X. Xu , X. P. You

By regularly monitoring the most stable millisecond pulsars over many years, pulsar timing arrays (PTAs) are positioned to detect and study correlations in the timing behaviour of those pulsars. Gravitational waves (GWs) from supermassive…

The International Pulsar Timing Array (IPTA) is an organisation whose raison d'etre is to facilitate collaboration between the three main existing PTAs (the EPTA in Europe, NANOGrav in North America and the PPTA in Australia) in order to…

Instrumentation and Methods for Astrophysics · Physics 2014-03-05 R. N. Manchester

The polarimetry of recent pulsar observations has provided a wealth of observational data with which to test physical theories of emission mechanisms, radiative transfer and even theories that extend beyond the Standard Model. In this work,…

High Energy Astrophysical Phenomena · Physics 2026-05-29 Michael Sarkis , Zi-Yan Yuwen , Yin-Zhe Ma , Tao Liu , Jing Ren , Patrick Weltevrede , Xiao Xue

We present an investigation of the morphology and arrival times of integrated radio pulses from the binary millisecond pulsar PSR J1022+1001. This pulsar is renowned for its poor timing properties, which have been postulated to originate…

Astrophysics · Physics 2016-08-30 A. W. Hotan , M. Bailes , S. M. Ord

Pulsar timing at the Mt Pleasant observatory has focused on Vela, which can be tracked for 18 hours of the day. These nearly continuous timing records extend over 24 years allowing a greater insight into details of timing noise, micro…

Astrophysics · Physics 2008-11-26 Richard Dodson , Dion Lewis , Peter McCulloch

The radio millisecond pulsar J1713+0747 is regarded as one of the highest-precision clocks in the sky, and is regularly timed for the purpose of detecting gravitational waves. The International Pulsar Timing Array collaboration undertook a…

Gravitational-wave astronomy has developed enormously over the last decade, with the first detections and continuous development across broad frequency bands. However, the decihertz range has largely been left out of this development.…

Instrumentation and Methods for Astrophysics · Physics 2026-05-06 Lucas M. B. Alves , Andrew G. Sullivan , Xingyu Ji , Doğa Veske , Imre Bartos , Sebastian Will , Zsuzsa Márka , Szabolcs Márka

In Paper I, we presented an overview of the Southern-sky MWA Rapid Two-metre (SMART) survey, including the survey design and search pipeline. While the combination of MWA's large field-of-view and the voltage capture system brings a survey…

Gravitational waves are a radically new way to peer into the darkest depths of the cosmos. Pulsars can be used to make direct detections of gravitational waves through precision timing. When a gravitational wave passes between a pulsar and…

High Energy Astrophysical Phenomena · Physics 2021-05-28 Stephen R. Taylor

Precision pulsar timing can be used for a variety of astrophysical tests from the detection of gravitational waves to probing the properties of the interstellar medium (ISM). Here we present analyses of the noise contributions to pulsar…

High Energy Astrophysical Phenomena · Physics 2020-02-20 Brent J. Shapiro-Albert , Maura A. McLaughlin , Michael T. Lam , James M. Cordes , Joe K. Swiggum

This papers searches for evidence of mass concentrations along the path of radio pulses in the IPTA survey data release. Radio pulse travel times are influenced via gravitational fields along the path from the source to the observer.…

Astrophysics of Galaxies · Physics 2025-03-14 John M. LoSecco

We present a total of 48 minutes of observations of the nearby, bright millisecond pulsar PSR J0437-4715 taken at the Parkes radio observatory in Australia. The data were obtained at a central radio frequency of 1380 MHz using a high-speed…

Astrophysics · Physics 2009-10-30 F. A. Jenet , S. B. Anderson , V. M. Kaspi , T. A. Prince , S. C. Unwin

Tempo2 is a new software package for the analysis of pulsar pulse times of arrival. In this paper we describe in detail the timing model used by tempo2, and discuss limitations on the attainable precision. In addition to the intrinsic…

Astrophysics · Physics 2009-11-11 R. T. Edwards , G. B. Hobbs , R. N. Manchester

We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at…

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