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The Galactic Center is host to a population of extraordinary radio filaments, thin linear structures that trace out magnetic field lines running perpendicular to the Galactic plane. Using Murriyang, the 64 m Parkes radio telescope, we…

High Energy Astrophysical Phenomena · Physics 2024-05-08 Marcus E. Lower , Shi Dai , Simon Johnston , Ewan D. Barr

Millisecond Pulsars (MSPs) are fast rotating, highly magnetized neutron stars. According to the "canonical recycling scenario", MSPs form in binary systems containing a neutron star which is spun up through mass accretion from the evolving…

Solar and Stellar Astrophysics · Physics 2014-05-14 Cristina Pallanca

As the evolutionary link between the radio millisecond pulsars (MSPs) and the low mass X-ray binaries or intermediate mass X-ray binaries, the millisecond X-ray pulsars (MSXPs) are important objects in testing theories of pulsar formation…

High Energy Astrophysical Phenomena · Physics 2015-10-14 Chunhua Zhu , Guoliang Lu , Zhaojun Wang

Globular clusters (GCs) are the ideal environment for the formation of neutron stars (NSs) and millisecond pulsars (MSPs). NSs origin and evolution provide a useful information on stellar dynamics and evolution in star clusters, and are…

Astrophysics of Galaxies · Physics 2018-08-29 Giacomo Fragione , Václav Pavlík , Sambaran Banerjee

The extreme timing stability of radio millisecond pulsars (MSPs) combined with their exotic environment and evolutionary history makes them excellent laboratories to probe matter in extreme condition. Population studies indicate that we…

High Energy Astrophysical Phenomena · Physics 2022-04-06 Bhaswati Bhattacharyya , Jayanta Roy

An understanding of spin frequency ($\nu$) evolution of neutron stars in the low-mass X-ray binary (LMXB) phase is essential to explain the observed $\nu$-distribution of millisecond pulsars (MSPs), and to probe the stellar and binary…

High Energy Astrophysical Phenomena · Physics 2021-01-20 Sudip Bhattacharyya

Millisecond pulsars (MSPs) are the oldest but fastest pulsars known to date. In the 1980s, to explain how these pulsars could be formed, a new hypothesis was formulated: the recycling of pulsars, i.e the fact that a pulsar could accrete…

High Energy Astrophysical Phenomena · Physics 2026-03-16 Mattéo Sautron , Jérôme Pétri , Dipanjan Mitra , Adélie Dupuy--Junet , Marie-Eloïse Pietrin

We summarize the channels formation of neutron stars (NS) in single or binary evolution and the classic recycling scenario by which mass accretion by a donor companion accelerates old NS to millisecond pulsars (MSP). We consider the…

High Energy Astrophysical Phenomena · Physics 2020-11-24 Francesca D'Antona , Marco Tailo

In this paper we review the recent discovery of several millisecond pulsars (MSPs) in eccentric binary systems. Timing these MSPs we were able to estimate (and in one case precisely measure) their masses. These results suggest that, as a…

Solar and Stellar Astrophysics · Physics 2009-07-21 Paulo C. C. Freire

We present results of a population synthesis of millisecond pulsars from the Galactic disk. Excluding globular clusters, we model the spatial distribution of millisecond pulsars by assuming their birth in the Galactic disk with a random…

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

In recent years, the number of pulsars with secure mass measurements has increased to a level that allows us to probe the underlying neutron star (NS) mass distribution in detail. We critically review the radio pulsar mass measurements. For…

Solar and Stellar Astrophysics · Physics 2016-02-09 Bulent Kiziltan , Athanasios Kottas , Maria De Yoreo , Stephen E. Thorsett

Current wisdom accounts to the diversity of neutron star observational manifestations to their birth scenarios, influencing their thermal and magnetic field evolution. Among the kind of observed neutron stars, radio pulsars represent by far…

High Energy Astrophysical Phenomena · Physics 2022-11-16 Ludmilla Dirson , Jérôme Pétri , Dipanjan Mitra

We have simulated a Galactic population of young pulsars and compared with the Fermi LAT sample, constraining the birth properties, beaming and evolution of these spin-powered objects. Using quantitative tests of agreement with the…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Kyle P. Watters , Roger W. Romani

Spider pulsars are systems in which a millisecond pulsar (MSP) tightly orbits (Pb $\lesssim$ 1 day) a low mass (mc $\lesssim$ 0.5 M$_\odot$) semi-degenerate star. Spider often display eclipses around superior conjunction. This eclipse…

High Energy Astrophysical Phenomena · Physics 2025-06-18 Clara Blanchard , Lucas Guillemot , Guillaume Voisin , Ismaël Cognard , Gilles Theureau

Rotation-powered millisecond radio pulsars have been spun up to their present spin period by a $10^8$ - $10^9$ yr long X-ray-bright phase of accretion of matter and angular momentum in a low-to-intermediate mass binary system. Recently, the…

High Energy Astrophysical Phenomena · Physics 2015-06-19 A. Papitto , D. F. Torres , N. Rea , T. Tauris

The millisecond pulsar(MSP) is believed to be an old neutron star(NS) having undergone spin-up by the accreting material from the donor. Whereas, the discovery of eccentric millisecond pulsars (eMSPs) in the Galactic field challenges such a…

Solar and Stellar Astrophysics · Physics 2023-10-24 D. Wang , B. P. Gong

We present results of a binary population synthesis study on the orbital period distribution of wide binary millisecond pulsars forming through four evolutionary channels. In three of the channels, the progenitor of the millisecond pulsar…

Astrophysics · Physics 2007-05-23 B. Willems , U. Kolb

We investigate the formation and evolutionary sequences of Galactic intermediate- and low-mass X-ray binaries (I/LMXBs) by combining binary population synthesis (BPS) and detailed stellar evolutionary calculations. Using an updated BPS code…

High Energy Astrophysical Phenomena · Physics 2015-12-16 Yong Shao , Xiang-Dong Li

We consider the currently observed spin distributions of various types of neutron stars, including isolated and binary radio millisecond pulsars in the Galactic plane and globular cluster system as well as neutron stars in low-mass X-ray…

Solar and Stellar Astrophysics · Physics 2015-05-13 J. W. T. Hessels

We report on the discovery of four millisecond pulsars (MSPs) in the High Time Resolution Universe (HTRU) pulsar survey being conducted at the Parkes 64-m radio telescope. All four MSPs are in binary systems and are likely to have white…