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Related papers: High-Precision Timing of 5 Millisecond Pulsars: Sp…

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We present a systematic study of the evolution of intermediate- and low-mass X-ray binaries consisting of an accreting neutron star of mass $1.0-1.8 M_{\odot}$ and a donor star of mass $1.0-6.0 M_{\odot}$. In our calculations we take into…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Yong Shao , Xiang-Dong Li

We report on five binary pulsars discovered in the Parkes multibeam Galactic plane survey. All of the pulsars are old, with characteristic ages 1-11 Gyr, and have relatively small inferred magnetic fields, 5-90e8 G. The orbital periods…

We present the discovery and timing results of 15 pulsars discovered in a high Galactic latitude survey conducted with the Five-hundred-meter Aperture Spherical Telescope (FAST). The survey targeted a region as close as possible to the…

High Energy Astrophysical Phenomena · Physics 2025-03-05 Xin Xu , Shi Dai , Qijun Zhi , Juntao Bai , Joanna Berteaud , Francesca Calore , Maïca Clavel , Weiwei Zhu , Di Li , Rushuang Zhao , Renxin Xu , Guojun Qiao

We analyze 24 binary radio pulsars in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) nine-year data set. We make fourteen significant measurements of Shapiro delay, including new detections in four pulsar-binary…

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…

High Energy Astrophysical Phenomena · Physics 2019-01-17 Ali Taani , Mashhoor A. Al-Wardat , Awni Khasawneh

Four evolutionary channels leading to the formation of wide binary millisecond pulsars are investigated. The majority of binary millisecond pulsars are found to descend from systems in which the most massive component undergoes a…

Astrophysics · Physics 2009-11-07 B. Willems , U. Kolb

We present a novel method that enables us to estimate the acceleration of individual millisecond pulsars (MSPs) using only their spin period and its time derivative. For our binary MSP sample, we show that one can obtain an empirical…

High Energy Astrophysical Phenomena · Physics 2025-05-23 Thomas Donlon , Sukanya Chakrabarti , Sophia Vanderwaal , Lawrence M. Widrow , Scott Ransom , Enrico Ramirez-Ruiz

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…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Iminhaji Ablimit , Xiang-Dong Li

Many astronomers have speculated that the solar system contains undiscovered massive planets or a distant stellar companion. The acceleration of the solar system barycenter can constrain the mass and position of the putative companion. In…

Astrophysics · Physics 2008-11-26 Nadia L. Zakamska , Scott Tremaine

(Abridged) We infer the velocity distribution of radio pulsars by modelling their birth, evolution, and detection in large-scale 0.4 GHz pulsar surveys, and by comparing model distributions of measurable pulsar properties with survey data…

Astrophysics · Physics 2009-11-06 Z. Arzoumanian , D. F. Chernoff , J. M. Cordes

We present a general method for determining the masses and orbital parameters of binary millisecond pulsars with long orbital periods (P_orb >> 1 yr), using timing data in the form of pulse frequency derivatives. We apply our method to…

Astrophysics · Physics 2009-10-28 K. J. Joshi , F. A. Rasio

Millisecond pulsars (MSPs) are generally believed to be old neutron stars (NSs) which have been spun up to high rotation rates via accretion of matter from a companion star in a low-mass X-ray binary (LMXB). However, many details of this…

Solar and Stellar Astrophysics · Physics 2014-11-11 Alina Istrate , Thomas Tauris , Norbert Langer

The mass function of neutron stars (NSs) contains information about the late evolution of massive stars, the supernova explosion mechanism, and the equation-of-state of cold, nuclear matter beyond the nuclear saturation density. A number of…

High Energy Astrophysical Phenomena · Physics 2016-05-06 John Antoniadis , Thomas M. Tauris , Feryal Ozel , Ewan Barr , David J. Champion , Paulo C. C. Freire

We present observations of fields containing eight recently discovered binary millisecond pulsars using the telescopes at MDM Observatory. Optical counterparts to four of these systems are detected, one of which, PSR J2214+3000, is a novel…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Joshua Schroeder , Jules Halpern

Binary millisecond pulsars (MSPs) are detached binary systems consisting of a MSP and a He white dwarf. If the initial orbital periods of binary MSPs are less than 0.3 day, they would evolve toward ultra-compact binary pulsars due to the…

High Energy Astrophysical Phenomena · Physics 2021-10-22 Wen-Cong Chen

The velocity and density distribution of $e^\pm$ in the pulsar wind are crucial distinction among magnetosphere models, and contains key parameters determining the high energy emission of pulsar binaries. In this work, a direct method is…

High Energy Astrophysical Phenomena · Physics 2017-10-11 Shu-Xu Yi , K. S. Cheng

We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at…

We present results of more than three decades of timing measurements of the first known binary pulsar, PSR B1913+16. Like most other pulsars, its rotational behavior over such long time scales is significantly affected by small-scale…

Astrophysics of Galaxies · Physics 2011-06-08 Joel M. Weisberg , David J. Nice , Joseph H. Taylor

We report on 22 yrs of radio timing observations of the millisecond pulsar J1024$-$0719 by the telescopes participating in the European Pulsar Timing Array (EPTA). These observations reveal a significant second derivative of the pulsar spin…