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Related papers: Pulsars at Parkes

200 papers

Pulsar timing is a powerful tool that, by accounting for every rotation of a pulsar, precisely measures the spin frequency, spin frequency derivatives, astrometric position, binary parameters when applicable, properties of the ISM, and…

High Energy Astrophysical Phenomena · Physics 2024-04-05 Jackson Taylor , Scott Ransom , Prajwal V. Padmanabh

Pulsars are rotating neutron stars which emit lighthouse-like beams. Owing to their unique properties, pulsars are a unique astrophysical tool to test general relativity, inform on matter at extreme densities, and probe galactic magnetic…

Instrumentation and Methods for Astrophysics · Physics 2019-07-24 Renaud Gueroult , Yuan Shi , Jean-Marcel Rax , Nathaniel J. Fisch

Pulsars in the Galactic centre promise to enable unparalleled tests of gravity theories and black hole physics and to serve as probes of the stellar formation history and evolution and the interstellar medium in the complex central region…

The motivation for radio pulsar timing and its basic principles are reviewed. Present and future radio timing techniques and hardware are summarised and compared. The array of present timing programmes and their scientific goals are…

Astrophysics · Physics 2007-05-23 J. F. Bell

We report on polarimetric observations of 100 pulsars centered on 774 MHz, made using the Green Bank Telescope, presenting their polarization profiles and polarized flux densities and comparing them with previous observations when possible.…

Solar and Stellar Astrophysics · Physics 2009-03-25 J. L. Han , P. B. Demorest , W. van Straten , A. G. Lyne

The sheer number of pulsars discovered by the SKA, in combination with the exceptional timing precision it can provide, will revolutionize the field of pulsar astrophysics. The SKA will provide a complete census of pulsars in both the…

Astrophysics · Physics 2011-07-19 J. M. Cordes , M. Kramer , T. J. W. Lazio , B. W. Stappers , D. C. Backer , S. Johnston

Pulsars are often lauded for their (relative) rotational and radio emission stability over long time scales. However, long-term observing programmes are identifying an increasing number of pulsars that deviate from this preconceived notion.…

High Energy Astrophysical Phenomena · Physics 2025-03-13 M. E. Lower , A. Karastergiou , S. Johnston , P. R. Brook , S. Dai , M. Kerr , R. N. Manchester , L. S. Oswald , R. M. Shannon , C. Sobey , P. Weltevrede

Searches for radio pulsars are becoming increasingly difficult because of a rise in impulsive man-made terrestrial radio-frequency interference. Here we present a new technique, zero-DM filtering, which can significantly reduce the effects…

Astrophysics of Galaxies · Physics 2009-11-13 R. P. Eatough , E. F. Keane , A. G. Lyne

High-precision pulsar timing is central to a wide range of astrophysics and fundamental physics applications. When timing an ensemble of millisecond pulsars in different sky positions, known as a pulsar timing array (PTA), one can search…

Instrumentation and Methods for Astrophysics · Physics 2018-10-09 R. N. Caballero

We present results of more than three decades of timing measurements of the first known binary pulsar, PSR B1913+16. Like most other pulsars, its rotational behavior over such long time scales is significantly affected by small-scale…

Astrophysics of Galaxies · Physics 2011-06-08 Joel M. Weisberg , David J. Nice , Joseph H. Taylor

Usually, positions of spacecraft on interplanetary or deep space missions are determined by radar tracking from ground stations, a method by which uncertainty increases with distance from Earth. As an alternative, a spacecraft equipped with…

High Energy Astrophysical Phenomena · Physics 2011-04-13 Mike Georg Bernhardt , Tobias Prinz , Werner Becker , Ulrich Walter

The extreme timing stability of radio millisecond pulsars (MSPs) combined with their exotic environment and evolutionary history makes them excellent laboratories to probe matter in extreme condition. Population studies indicate that we…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Bhaswati Bhattacharyya , Jayanta Roy

We present the results of radio searches for pulsars within unidentified EGRET source error boxes. Using the Parkes multibeam system, we have surveyed 56 sources at Galactic latitudes |b| > 5 deg which do not appear to be associated with…

The Pulsar Search Collaboratory (PSC) engages high school students and teachers in analyzing real data from the Robert C. Byrd Green Bank Telescope for the purpose of discovering exotic stars called pulsars. These cosmic clocks can be used…

Instrumentation and Methods for Astrophysics · Physics 2019-03-27 Kathryn Williamson , Maura McLaughlin , Sue Ann Heatherly , John Stewart , Duncan Lorimer , Harsha Blumer , Cabot Zabriskie , Ryan Lynch

The Green Bank North Celestial Cap survey is one of the largest and most sensitive searches for pulsars and transient radio objects. Observations for the survey have finished; priorities have shifted toward long-term monitoring of its…

A method for pulsar timing based on monitoring data from the 3-th diagramm of the Large Phased Array (LPA LPI) radio telescope is proposed. In our observations, recorders with quartz clock generators were used as local clocks. Such…

High Energy Astrophysical Phenomena · Physics 2025-04-14 S. A. Andrianov , V. A. Potapov , S. A. Tyul'bashev , S. V. Logvinenko , V. V. Oreshko

Pulsars, if existing and detectable in the immediate vicinity of the massive black hole (MBH) in the Galactic center (GC), may be used as a superb tool to probe both the environment and the metric of the central MBH. The recent discovery of…

Astrophysics of Galaxies · Physics 2015-06-18 Fupeng Zhang , Youjun Lu , Qingjuan Yu

Flux densities are basic observation parameters to describe pulsars. In the most updated pulsar catalog, 24% of the listed radio pulsars have no flux density measurement at any frequency. Here, we report the first flux density measurements,…

High Energy Astrophysical Phenomena · Physics 2022-07-27 Z. R. Zhou , J. B. Wang , N. Wang , G. Hobbs , S. Q. Wang

We report the discovery of three pulsars whose large dispersion measures and angular proximity to \sgr indicate the existence of a Galactic center population of neutron stars. The relatively long periods (0.98 to 1.48 s) most likely reflect…

Solar and Stellar Astrophysics · Physics 2015-05-13 J. S. Deneva , J. M. Cordes , T. J. W. Lazio

We present 75 pulsars discovered in the mid-latitude portion of the High Time Resolution Universe survey, 54 of which have full timing solutions. All the pulsars have spin periods greater than 100 ms, and none of those with timing solutions…