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Related papers: Monopole-charged pulsars and relevant issues

200 papers

A solitary millisecond pulsar, if near the mass limit, and undergoing a phase transition, either first or second order, provided the transition is to a substantially more compressible phase, will emit a blatantly obvious…

Astrophysics · Physics 2009-10-30 Norman K. Glendenning

We investigate the hypothesis that the core of a galaxy has a positive electrical charge with an equal and opposite negative charge distributed over the galactic periphery. We present a determination of the amount of charge needed to…

General Physics · Physics 2015-05-20 S. Reucroft

The radiation of a pulsar wind is computed assuming that at roughly 10 to 100 light cylinder radii from the star, magnetic energy is dissipated into particle energy. The synchrotron emission of heated particles appears periodic, with, in…

Astrophysics · Physics 2009-11-07 J. G. Kirk , O. Skjaeraasen , Y. A. Gallant

Isolated pulsars are rotating neutron stars with accurately measured angular velocities $\Omega$, and their time derivatives that show unambiguously that the pulsars are slowing down. The commonly accepted view is that it arises through…

High Energy Astrophysical Phenomena · Physics 2016-08-05 Oliver Q. Hamil , Jirina R. Stone , Martin Urbanec , Gabriela Urbancova

Many pulsars are formed with a binary companion from which they can accrete matter. Torque exerted by accreting matter can cause the pulsar spin to increase or decrease, and over long times, an equilibrium spin rate is achieved. Application…

Solar and Stellar Astrophysics · Physics 2014-01-03 Wynn C. G. Ho , H. Klus , M. J. Coe , Nils Andersson

Emission spectrum is calculated for a weak axisymmetric pulsar. Also calculated are the observed spectrum, efficiency, and the observed efficiency. The underlying flow of electrons and positrons turns out to be curiously intricate.

High Energy Astrophysical Phenomena · Physics 2013-09-27 Andrei Gruzinov

Radio pulsars with millisecond spin periods are thought to have been spun up by transfer of matter and angular momentum from a low-mass companion star during an X-ray-emitting phase. The spin periods of the neutron stars in several such…

The exact analytical solutions for vacuum electromagnetic fields of slowly rotating magnetized compact stars in conformal gravity have been studied. Taking the realistic dipolar magnetic field configuration for the star, analytical…

General Relativity and Quantum Cosmology · Physics 2018-06-11 Bobur Turimov , Bobomurat Ahmedov , Ahmadjon Abdujabbarov , Cosimo Bambi

The X-ray and gamma-ray spectrum of rotation-powered millisecond pulsars is investigated in a model for acceleration and pair cascades on open field lines above the polar caps. Although these pulsars have low surface magnetic fields, their…

Astrophysics · Physics 2016-08-30 Alice K. Harding , Vladimir V. Usov , Alex G. Muslimov

Low energy X-ray emission (0.1-10 keV) from all six millisecond radio pulsars (MSPs) for which such emission has been reported support a proposed pulsar magnetic field evolution previously compared only to radiopulse data: old, very…

Astrophysics · Physics 2007-05-23 M. Ruderman

We consider the time derivatives of the period $P$ of pulsars at the Galactic Center due to variations in their orbital Doppler shifts. We show that in conjunction with a measurement of a pulsar's proper motion and its projected separation…

Instrumentation and Methods for Astrophysics · Physics 2015-06-19 Pierre Christian , Abraham Loeb

It appears that there is a genuine shortage of radio pulsars with surface magnetic fields significantly smaller than $\sim 10^8$ Gauss. We propose that the pulsars with very low magnetic fields are actually strange stars locked in a state…

Astrophysics · Physics 2009-11-13 Raka Dona Ray Mandal , Monika Sinha , Manjari Bagchi , Sushan Konar , Mira Dey , Jishnu Dey

According to the observational limits on the radius and mass, the fastest rotating pulsar (PSR 1937+21) is probably a strange star, or at least some neutron star equations of state should be ruled out, if we suggest that a dipole magnetic…

Astrophysics · Physics 2010-11-19 R. X. Xu , X. B. Xu , X. J. Wu

Measurement of accurate positions, pulse periods and period derivatives is an essential follow-up to any pulsar survey. The procedures being used to obtain timing parameters for the pulsars discovered in the Parkes multibeam pulsar survey…

Many millisecond pulsars are thought to be old neutron stars spun up (`recycled') during an earlier accretion phase. They typically have relatively weak ($\lesssim 10^{9} \text{ G}$) dipole field strengths, consistent with accretion-induced…

High Energy Astrophysical Phenomena · Physics 2020-10-21 Arthur G. Suvorov , Andrew Melatos

The analysis of distributions of some parameters of radio pulsars emitting X-ray radiation was carried out. The majority of such pulsars has short spin periods with the average value $< P >$ = 133 msec. The distribution of period…

High Energy Astrophysical Phenomena · Physics 2019-04-10 Igor F. Malov , Maria A. Timirkeeva

As a result of observational difficulties, braking indices of only six rotation-powered pulsars are obtained with certainty, all of which are remarkably smaller than the value ($n=3$) expected for pure magnetodipole radiation model. This is…

Astrophysics · Physics 2008-11-26 Y. L. Yue , R. X. Xu , W. W. Zhu

In order to investigate the importance of dissipation in the pulsar magnetosphere we decided to combine Force-Free with Aristotelian Electrodynamics. We obtain solutions that are ideal (non-dissipative) everywhere except in an equatorial…

High Energy Astrophysical Phenomena · Physics 2016-09-28 Ioannis Contopoulos

Millisecond pulsars, with magnetic fields weaker by three to four orders compared to those of ordinary pulsars, are presumed to be neutron stars spun up by binary accretion. We expect the magnetic field to get screened by the accreted…

Astrophysics · Physics 2007-05-23 Arnab Rai Choudhuri , Sushan Konar

The relationship between pulsar-like compact stars and gravitational waves is briefly reviewed. Due to regular spins, pulsars could be useful tools for us to detect ~nano-Hz low-frequency gravitational waves by pulsar-timing array…

High Energy Astrophysical Phenomena · Physics 2011-09-14 K. J. Lee , R. X. Xu , G. J. Qiao