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Related papers: Monopole-charged pulsars and relevant issues

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We consider the polarization behaviour of radio waves propagating through an ultrarelativistic highly magnetized electron-positron plasma in a pulsar magnetosphere. The rotation of magnetosphere gives rise to the wave mode coupling in the…

Astrophysics · Physics 2009-10-31 Y. E. Lyubarskii , S. A. Petrova

We report the discovery using the Parkes radio telescope of binary millisecond pulsars in four clusters for which no associated pulsars were previously known. The four pulsars have pulse periods lying between 3 and 6 ms. All are in circular…

Astrophysics · Physics 2009-10-31 N. D'Amico , A. G. Lyne , R. N. Manchester , A. Possenti , F. Camilo

Nonintegrable dynamical systems have complex structures in their phase space. Motion of a test charged particle in a dipole magnetic field can be reduced to a 2 degree-of-freedom (2 d.o.f.) nonintegrable Hamiltonian system. We carried out a…

Dynamical Systems · Mathematics 2023-02-15 Hanrui Pang , Siming Liu , Rong Liu

Radio pulsars exhibit an enormous diversity of single pulse behaviour that involves sudden changes in pulsation mode and nulling occurring on timescales of tens or hundreds of spin periods. The pulsations appear both chaotic and…

High Energy Astrophysical Phenomena · Physics 2021-10-22 J. Dyks

The number of pulsars with detected emission at X-ray and gamma-ray energies has been steadily growing, showing that beams of high-energy particles are commonly accelerated in pulsar magnetospheres, even though the location and number of…

Astrophysics · Physics 2009-11-11 Isabelle A. Grenier , Alice K. Harding

The understanding of pulsar radio emission demands a close look at all regions of the huge parameter space present for pulsar observations. In this review we concentrate on the space given by the range of observed pulse periods, spanning…

Astrophysics · Physics 2007-05-23 M. Kramer

Is pulsar make up of strange matter? The magnetic field decay of a pulsar may be able to give us an answer. Since Cooper pairing of quarks occurs inside a sufficiently cold strange star, the strange stellar core is superconducting. In order…

Astrophysics · Physics 2009-10-28 H. F. Chau

The observed long-term spin-down evolution of isolated radio pulsars cannot be explained by the standard magnetic dipole radiation with a constant braking torque. However how and why the torque varies still remains controversial, which is…

Solar and Stellar Astrophysics · Physics 2015-06-18 Yi Xie , Shuang-Nan Zhang

We have monitored a large sample of millisecond pulsars using the 100-m Effelsberg radio telescope in order to compare their radio emission properties to the slowly rotating population. With some notable exceptions, our findings suggest…

Single pulses of pulsar radio emission are modeled as superposition of radiation originating from many small subsources that are randomly distributed in the emission region. The individual subsources are given an intrinsic finite angular…

Astrophysics · Physics 2009-11-10 Qinghuan Luo

We present results of our pulsar population synthesis of ordinary isolated and millisecond pulsars in the Galactic plane. Over the past several years, a program has been developed to simulate pulsar birth, evolution and emission using Monte…

Astrophysics · Physics 2008-11-26 Peter L. Gonthier , Sarah A. Story , Brian D. Clow , Alice K. Harding

We examine the growing data set of binary millisecond pulsars that are thought to have a helium white dwarf companion. These systems are believed to form when a low- to intermediate-mass companion to a neutron star fills its Roche lobe…

Solar and Stellar Astrophysics · Physics 2015-06-17 Sarah L. Smedley , Christopher A. Tout , Lilia Ferrario , Dayal T. Wickramasinghe

Pulsar spindown forms a reliable yet enigmatic prototype for the energy loss processes in many astrophysical objects including accretion disks and back holes. In this paper we review the physics of pulsar magnetospheres, concentrating on…

Astrophysics · Physics 2009-11-11 Anatoly Spitkovsky

From our sample of spotted late-type stars showing surface differential rotation we find that the relationship between the rotation period and the surface shear coefficient $\alpha=\Delta\Omega/\Omega_{\rm eq}$ is significantly different…

Solar and Stellar Astrophysics · Physics 2017-12-13 Zs. Kővári , K. Oláh , L. Kriskovics , K. Vida , E. Forgács-Dajka , K. G. Strassmeier

Selfconsistent magnetospheres of rotating cosmic magnets (neutron stars/pulsars) with arbitrary inclination of the magnetic against the rotation axis are considered. Present studies concentrate on the regime dominated by the force--free…

Astrophysics · Physics 2007-05-23 Peter Biltzinger , Klaus Oswald Thielheim

This is a review of X-ray emission from all types of isolated neutron stars, with an emphasis on rotation-powered pulsars. Topics include magnetospheric and thermal emission, as well as pulsar wind nebulae.

Astrophysics · Physics 2007-05-23 V. M. Kaspi , M. S. E. Roberts , A. K. Harding

We present a statistical study of pulsars and millisecond pulsars (MSPs) based on multiwavelength observations in the Galactic Field and Globular Clusters. We examine their emission properties, timing behavior, and spatial distributions,…

High Energy Astrophysical Phenomena · Physics 2026-02-10 Maria Rah , Areg Mickaelian , Francesco Flammini Dotti , Rainer Spurzem

Two classes of X-ray/$\gamma$-ray sources, the Soft Gamma Repeaters and the Anomalous X-ray Pulsars have been identified with isolated, slowly spinning magnetars, neutron stars whose emission draws energy from their extremely strong…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Simone Dall'Osso , Luigi Stella

We make statistics about the number distribution of normal radio pulsars according to the pulsar spin period. And find the physical meaning of the traditional statistical method about this problem is very limited. According to the…

Solar and Stellar Astrophysics · Physics 2011-03-22 Ying-Chun Wei , Cheng-Min Zhang , Yong-Heng Zhao , Qiu-He Peng , Xin-Ji Wu

Numerical simulations of realistic non-vacuum magnetospheres of isolated neutron stars have shown that pulsar spin-down luminosities depend weakly on the magnetic obliquity. This result provides the opportunity to estimate the surface…

High Energy Astrophysical Phenomena · Physics 2017-02-21 Anton Biryukov , Artyom Astashenok , Gregory Beskin
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