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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

We report on calculations of the pulsar birthrate based on the results of the Parkes multibeam survey. From the observed sample of more than 800 pulsars, we compute the pulsar current, accounting as accurately as possible for all known…

Low-frequency pulsar observations are crucial for understanding pulsar emission spectra and population physics, as well as for probing the interstellar medium (ISM) and Earth's ionosphere. We report the largest low-frequency pulsar census…

High Energy Astrophysical Phenomena · Physics 2026-04-01 Pratik Kumar , Marcin Sokolowski , Randall Wayth

We present phase-coherent timing solutions obtained for the first time for 17 pulsars discovered at Arecibo by Hulse & Taylor (1975ab) in a 430-MHz survey of the Galactic plane. This survey remains the most sensitive of the Galactic plane…

Astrophysics · Physics 2009-11-07 Duncan R. Lorimer , Fernando Camilo , Kiraki Xilouris

We address the issue of electromagnetic pulsar spindown by combining our experience from the two limiting idealized cases which have been studied in great extent in the past: that of an aligned rotator where ideal MHD conditions apply, and…

Astrophysics · Physics 2009-11-13 Ioannis Contopoulos , Anatoly Spitkovsky

Pulsars are believed to be sources of relativistic electrons and positrons. The abundance of detections of gamma-ray millisecond pulsars by Fermi Large Area Telescope coupled with their light curve characteristics that imply copious pair…

High Energy Astrophysical Phenomena · Physics 2015-06-23 C. Venter , A. Kopp , P. L. Gonthier , A. K. Harding , I. Büsching

The Square Kilometre Array (SKA) will make ground breaking discoveries in pulsar science. In this chapter we outline the SKA surveys for new pulsars, as well as how we will perform the necessary follow-up timing observations. The SKA's wide…

Studies of stellar populations, understood to mean collections of stars with common spatial, kinematic, chemical, and/or age distributions, have been reinvigorated during the last decade by the advent of large-area sky surveys such as SDSS,…

Astrophysics of Galaxies · Physics 2015-06-17 Zeljko Ivezic , Timothy C. Beers , Mario Juric

We report a new pulsar population synthesis based on Monte Carlo techniques, aiming to estimate the contribution of galactic radio pulsars to the continuous gravitational wave emission. Assuming that the rotation periods of pulsars at birth…

Astrophysics · Physics 2007-05-23 T. Regimbau , J. A. de Freitas Pacheco

The millisecond pulsars, old-recycled objects spinning with high frequency $\mathcal{O}$ (kHz) sustaining the deformation from their spherical shape, may emit gravitational waves (GW). These are one of the potential candidates contributing…

General Relativity and Quantum Cosmology · Physics 2023-07-18 Deepali Agarwal , Jishnu Suresh , Vuk Mandic , Andrew Matas , Tania Regimbau

Many authors have considered a gravitational origin of the magnetic field of celestial bodies. Especially, the so-called Wilson-Blackett formula has been investigated, both theoretically and observationally. It appeared possible to deduce…

Astrophysics · Physics 2007-05-23 Jacob Biemond

We present a list of 109 pulsars with independent distance information compiled from the literature. Since the compilation of Frail & Weisberg, there are 35 pulsars with new distance estimate and 25 pulsars for which the distance or…

Astrophysics · Physics 2009-11-06 Gilberto C. Gomez , Robert A. Benjamin , Donald P. Cox

Detecting and studying pulsars above a few GHz in the radio band is challenging due to the typical faintness of pulsar radio emission, their steep spectra, and the lack of observatories with sufficient sensitivity operating at high…

High Energy Astrophysical Phenomena · Physics 2018-06-29 Pablo Torne

The braking index, $n$, of a pulsar is a measure of its angular momentum loss and the value it takes corresponds to different spin-down mechanisms. For a pulsar spinning down due to gravitational wave emission from the principal mass…

High Energy Astrophysical Phenomena · Physics 2025-03-27 A. L. Hewitt , M. Pitkin , I. M. Hook

We combine pulsar population synthesis with simulation-based inference (SBI) to constrain the magnetorotational properties of isolated Galactic radio pulsars. We first develop a framework to model neutron star birth properties and their…

High Energy Astrophysical Phenomena · Physics 2024-06-06 Vanessa Graber , Michele Ronchi , Celsa Pardo-Araujo , Nanda Rea

Several studies have shown the distribution of pulsars' magnetic inclination angles to be skewed towards low values compared with the distribution expected if the rotation and magnetic axes are placed randomly on the star. Here we focus on…

High Energy Astrophysical Phenomena · Physics 2015-06-23 S. C. Rookyard , P. Weltevrede , S. Johnston

The search of pulsars in monitoring observations being carried out for 5 years using LPA LPI radio telescope was done in 96 spatial beams covering daily 17,000 square degrees. Five new pulsars were detected. Candidates into pulsars were…

High Energy Astrophysical Phenomena · Physics 2022-04-21 S. A. Tyul'bashev , M. A. Kitaeva , V. S. Tyul'bashev , V. M. Malofeev , G. E. Tyul'basheva

Accurate synthetic models of stellar populations are constructed and used in evolutionary models of stellar populations in forming galaxies. Following their formation, the late type galaxies are assumed to follow the Schmidt law for star…

Astrophysics · Physics 2009-10-30 R. Jimenez , A. Kashlinsky

Millisecond pulsars occur abundantly in globular clusters. They are expected to be responsible for several spectral components in the radio through gamma-ray waveband (e.g., involving synchrotron and inverse Compton emission), as have been…

High Energy Astrophysical Phenomena · Physics 2015-04-21 C. Venter , A. Kopp

Radio-wave scattering is enhanced dramatically for Galactic center sources in a region with radius >~ 15 arc min. Using scattering from Sgr A* and other sources, we show that pulse broadening for pulsars in the Galactic center is {\em at…

Astrophysics · Physics 2009-10-28 James M. Cordes , T. Joseph W. Lazio
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