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相关论文: Braking PSR J1734-3333 with a possible fall-back d…

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Recently, a braking index for the pulsar PSR J1640-4631 has been measured. With a braking index of $n = 3.15 \pm 0.03$, this pulsar has the highest braking index ever measured. As it is well known, a pure magnetic dipole brake yields $n =…

高能天体物理现象 · 物理学 2016-07-18 José C. N. de Araujo , Jaziel G. Coelho , Cesar A. Costa

The characteristic age of PSR J1734$-$3333 estimated from its current spin down rate implies that it is a young pulsar ($\tau_c<10$ kyr). But the time derivative of its spin down rate differs markedly from that assumed for normal radio…

高能天体物理现象 · 物理学 2022-03-14 C. M. Espinoza , M. Vidal-Navarro , W. C. G. Ho , A. Deller , S. Chatterjee

The magnetic fields of the nascent neutron stars could be submerged in the crust by rapid fallback accretion and could diffuse to the surface later in life. According to this field burial scenario young pulsars may have growing magnetic…

高能天体物理现象 · 物理学 2017-05-03 K. Yavuz Ekşi

Recent timing observation provides an intriguing result for the braking index of the X-ray pulsar PSR J1640-4631, which has a measured braking index $n=3.15\pm0.03$. The decrease of the inclination angle between between the spin axis and…

高能天体物理现象 · 物理学 2020-01-08 Hui Shi , Hong-Wei Hu , Wen-Cong Chen

As presented by Nice et al. (2000), long-term timing of the eclipsing binary PSR B1744-24A shows that the orbital period of this system decreases with a time-scale of only ~ 200 Myr. To explain the much faster orbital period decay than that…

天体物理学 · 物理学 2007-05-23 Ene Ergma , Marek J. Sarna

The pulsar J0537$-$6910 undergoes spin-up glitches more frequently than any other known pulsar, at a rate of roughly thrice per year. Its glitches are typically large and accompanied by spin-down rate changes $\Delta\dot\nu$ that partially…

高能天体物理现象 · 物理学 2026-02-11 Erbil Gügercinoğlu , Onur Akbal , M. Ali Alpar , Danai Antonopoulou , Cristóbal M. Espinoza

PSR J1814-1744 is a 4 s radio pulsar with surface dipole magnetic field strength 5.5*10^13 G, inferred assuming simple magnetic dipole braking. This pulsar's spin parameters are very similar to those of anomalous X-ray pulsars (AXPs),…

天体物理学 · 物理学 2016-08-30 M. J. Pivovaroff , V. M. Kaspi , F. Camilo

Debris disks and asteroid belts are expected to form around young pulsars due to fallback material from their original supernova explosions. Disk material may migrate inwards and interact with a pulsar's magnetosphere, causing changes in…

高能天体物理现象 · 物理学 2015-06-17 P. R. Brook , A. Karastergiou , S. Buchner , S. J. Roberts , M. J. Keith , S. Johnston , R. M. Shannon

The departure of all measured pulsar braking indexes from the "canonical" dipole value 3 has been attributed to several causes in the past. Careful monitoring of the Crab pulsar has revealed permanent changes in the spin-down rate which are…

高能天体物理现象 · 物理学 2019-01-23 J. E. Horvath

The recent discovery of burst oscillations at 1122 Hz in the x-ray transient XTE J1739-285, together with the measurement of the mass of the binary millisecond pulsar PSR J0751+1807 (2.1 +- 0.2 solar masses) can finally allow us to put…

天体物理学 · 物理学 2007-05-23 G. Lavagetto , I. Bombaci , A. D'Ai' , I. Vidana , N. R. Robba

The Five-hundred-meter Aperture Spherical Telescope is discovering hundreds of new pulsars, including a slowly spinning compact binary millisecond pulsar (spin period $P_{\rm spin}=14.2$\,ms) which showed radio eclipses and evidence of…

高能天体物理现象 · 物理学 2025-06-02 Devina Misra , Karri I. I. Koljonen , Manuel Linares

A novel scheme has been developed to show that the observed phase behaviour associated with subpulse drifting from two pulsars, J1034$-$3224 and J1720$-$2933, can be used to obtain the magnetic field configuration in the partially screened…

高能天体物理现象 · 物理学 2023-05-24 Rahul Basu , Dipanjan Mitra , George I. Melikidze

We report the discovery and timing measurements of PSR J1208-6238, a young and highly magnetized gamma-ray pulsar, with a spin period of 440 ms. The pulsar was discovered in gamma-ray photon data from the Fermi Large Area Telescope (LAT)…

PSR J1933$-$6211 is a 3.5-ms pulsar in a 12.8-d orbit with a white dwarf (WD). Its high proper motion and low dispersion measure result in such significant interstellar scintillation that high signal-to-noise detections require long…

An isolated pulsar is a rotating neutron star possessing a high magnetic dipole moment that generally makes a finite angle with its rotation axis. As a consequence, the emission of magnetic dipole radiation (MDR) continuously takes away its…

高能天体物理现象 · 物理学 2023-02-28 E. C. A. Araujo , V. A. De Lorenci , P. Peter , L. S. Ruiz

The pulsar PSR B1828-11 has long-term, highly periodic and correlated variations in both pulse shape and the rate of slow-down. This phenomenon may provide evidence for precession of the pulsar as suggested previously within the framework…

天体物理学 · 物理学 2009-11-11 K. Liu , Y. L. Yue , R. X. Xu

Isolated pulsars are rotating neutron stars with accurately measured angular velocities $\Omega$, and their time derivatives which show unambiguously that the pulsars are slowing down. Although the exact mechanism of the spin-down is a…

高能天体物理现象 · 物理学 2015-04-01 Oliver Hamil

PSR J2039-5617 is a redback millisecond pulsar binary system consisting of a compact star with a mass of 1.1-1.6 $M_\odot$ and a low-mass companion of 0.15-0.22 $M_\odot$. For this binary, we performed a timing analysis using 16 years of…

高能天体物理现象 · 物理学 2025-11-25 Mengqing Zhang , Shengbin Pei , Shan Chang , Pengfei Zhang

Pulsars are rotating, magnetized neutron stars that are born in supernova explosions following the collapse of the cores of massive stars. If some of the explosion ejecta fails to escape, it may fall back onto the neutron star or it may…

天体物理学 · 物理学 2007-05-23 Zhongxiang Wang , Deepto Chakrabarty , David L. Kaplan

Using a highly accurate numerical code, we study the spin down of rotating relativistic stars, undergoing a quark deconfinement phase transition. Such phase transitions have been suggested to yield an observable signal in the braking index…

天体物理学 · 物理学 2009-11-07 N. K. Spyrou , N. Stergioulas