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We report the discovery and characterization of PSR J1810-0623, a fully recycled millisecond pulsar with a spin period of 4.55 ms, discovered with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) and followed up with FAST…

We have collected the parameter of 38 neutron stars (NSs) in binary systems with spin periods and measured masses. By adopting the Boot-strap method, we reproduced the procedure of mass calculated for each system separately, to determine…

高能天体物理现象 · 物理学 2013-03-28 Z. Cheng , A. Taani , Y. H. Zhao

Recycled pulsars are mainly characterized by their spin periods, B-fields and masses. All these quantities are affected by previous interactions with a companion star in a binary system. Therefore, we can use these quantities as fossil…

太阳与恒星天体物理 · 物理学 2016-06-17 Thomas M. Tauris

Accretion-induced collapse of massive white dwarfs (WDs) has been proposed to be an important channel to form binary millisecond pulsars (MSPs). Recent investigations on thermal timescale mass transfer in WD binaries demonstrate that the…

高能天体物理现象 · 物理学 2015-06-23 Iminhaji Ablimit , Xiang-Dong Li

Rotation-powered "recycled" millisecond pulsars are a variety of rapidly-spinning neutron stars that typically show thermal X-ray radiation due to the heated surface of their magnetic polar caps. Detailed numerical modeling of the…

高能天体物理现象 · 物理学 2016-03-23 Slavko Bogdanov

The measured characteristics of binary pulsars provide valuable insights into the evolution of these systems. We study the aspects of binary evolution particularly relevant to binary Millisecond Pulsars (MSPs), and the formation of close…

高能天体物理现象 · 物理学 2019-01-17 Ali Taani , Mashhoor A. Al-Wardat , Awni Khasawneh

Fast spinning neutron stars, recycled in low mass binaries, may have accreted a substantial amount of mass. The available relativistic measurements of neutron star masses, all clustering around 1.4 M_sun, however refer mostly to slowly…

天体物理学 · 物理学 2009-10-31 Luciano Burderi , Andrea Possenti , Monica Colpi , Tiziana Di Salvo , Nichi D'Amico

Accreting millisecond X-ray pulsars are known to provide a wealth of physical information during their successive states of outburst and quiescence. Based on the observed spin-up and spin-down rates of these objects it is possible, among…

高能天体物理现象 · 物理学 2021-09-29 Kostas Glampedakis , Arthur G. Suvorov

We present a model for the spindown of young radio pulsars in which the neutron star loses rotational energy not only by emitting magnetic dipole radiation but also by torquing a surrounding accretion disk produced by supernova fallback.…

天体物理学 · 物理学 2009-11-06 Kristen Menou , Rosalba Perna , Lars Hernquist

Millisecond pulsars in tight binaries have recently opened new challenges in our understanding of physical processes governing the evolution of binaries and the interaction between astrophysical plasma and electromagnetic fields.…

高能天体物理现象 · 物理学 2022-06-22 Alessandro Papitto , Domitilla de Martino

Based on the model of the accretion-induced magnetic field decay of a neutron star (NS), millisecond pulsars (MSPs) will obtain their minimum magnetic field when the NS magnetosphere radius shrinks to the stellar surface during the binary…

高能天体物理现象 · 物理学 2018-08-03 Y. Y. Pan , C. M. Zhang , L. M. Song , N. Wang , D. Li , Y. Y. Yang

Cosmological gamma-ray bursts (GRBs) could be driven by dissipation of pure electromagnetic energy (Poynting flux) extracted from rapidly rotating compact objects with strong magnetic fields. One such possibility is a young millisecond…

天体物理学 · 物理学 2009-10-30 Insu Yi , Eric G. Blackman

Basic ideas about the torques on the neutron star and the existence of an equilibrium rotation period followed from the recognition that most X-ray binaries contain accretion powered neutron stars. The evolution of binaries through a phase…

天体物理学 · 物理学 2009-11-13 M. Ali Alpar

Millisecond pulsars are thought to be neutron stars that have been spun-up by accretion of matter from a binary companion. Although most are in binary systems, some 30% are solitary, and their origin is therefore mysterious. PSR J1719-1438,…

Measuring the spin of Accreting Neutron Stars is important because it can provide constraints on the Equation of State of ultra-dense matter. Particularly crucial to our physical understanding is the discovery of sub-millisecond pulsars,…

高能天体物理现象 · 物理学 2011-01-28 Alessandro Patruno

We compare the rotation rate of neutron stars in low-mass X-ray binaries (LMXBs) with the orbital period of the binaries. We find that, while short orbital period LMXBs span a range of neutron star rotation rates, all the long period LMXBs…

高能天体物理现象 · 物理学 2011-04-08 Wynn C. G. Ho , Thomas J. Maccarone , Nils Andersson

If the ultraluminous source (ULX) M82 X-2 sustains its measured spin-up value of $\dot \nu= 10^{-10}\,{\rm s^{-2}}$, it will become a millisecond pulsar in less than $10^5\,$ years. The observed (isotropic) luminosity of $10^{40}\,$ erg/s…

太阳与恒星天体物理 · 物理学 2015-02-02 Wlodek Kluzniak , Jean-Pierre Lasota

Millisecond pulsars are rather weakly-magnetized neutron stars which are thought to have been spun up by disc accretion, with magnetic linkage between the star and the disc playing a key role. Their spin history depends sensitively on…

太阳与恒星天体物理 · 物理学 2013-10-28 L. Naso , W. Kluźniak , J. C. Miller

According to the recycling model, neutron stars in low-mass X-ray binaries were spun up to millisecond pulsars (MSPs), which indicates that all MSPs in the Galactic plane ought to be harbored in binaries. However, about $20\%$ Galactic…

高能天体物理现象 · 物理学 2020-01-15 Long Jiang , Na Wang , Wen-Cong Chen , Xiang-Dong Li , Wei-Min Liu , Zhi-Fu Gao

Assuming the wind-fed accretion magnetars in long period X-ray pulsars, we calculated the rotational evolution of the neutron stars. Our calculations considered the effects of the magnetic field decay in magnetars. The results show that…

高能天体物理现象 · 物理学 2020-01-15 Wei Wang , Hao Tong