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We revisit the case of magneto-rotational evolution of neutron stars (NSs) with accounting for changes of the angle \chi between spin and magnetic axes. This element of the evolution of NSs is very important for age estimates and population…

Astrophysics · Physics 2007-05-23 S. A. Eliseeva , S. B. Popov , V. S. Beskin

The observed timing data, magnetic tilt angle $\chi$, and age of young pulsars could be used to probe some important issues about neutron star (NS) physics, e.g., the NS internal magnetic field configuration, and the number of precession…

High Energy Astrophysical Phenomena · Physics 2024-11-01 Yu-Long Yan , Quan Cheng , Xiao-Ping Zheng

Aims. The mass discrepancy between the observed population of double neutron star binaries by radio pulsar observations and gravitational-wave observation requires an explanation. Methods. Binary population synthesis calculations are…

Solar and Stellar Astrophysics · Physics 2020-07-22 Matthias U. Kruckow

We investigate the statistics of isolated recycled pulsars and double neutron star binaries in the Galactic disk. Since recycled pulsars are believed to form through accretion and spinup in close binaries, the isolated objects presumably…

Astrophysics of Galaxies · Physics 2015-05-13 K. Belczynski , D. R. Lorimer , J. P. Ridley , S. J. Curran

We have implemented prescriptions for modelling pulsars in the rapid binary population synthesis code COMPAS. We perform a detailed analysis of the double neutron star (DNS) population, accounting for radio survey selection effects. The…

High Energy Astrophysical Phenomena · Physics 2020-04-22 Debatri Chattopadhyay , Simon Stevenson , Jarrod R. Hurley , Luca J. Rossi , Chris Flynn

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

The nature of two recently discovered radio emitters with unusually long periods of 18min (GLEAM-X J1627-52) and 21min (GPM J1839-10) is highly debated. Their bright radio emission resembles that of radio magnetars, but their long…

We have investigated the evolutionary connections of the isolated neutron star (NS) populations including radio pulsars (RPs), anomalous X-ray pulsars (AXPs), soft gamma repeaters (SGRs), dim isolated NSs (XDINs), ``high-magnetic-field''…

High Energy Astrophysical Phenomena · Physics 2024-09-19 Ali Arda Gencali , Unal Ertan

We simulate the characteristics of the Galactic population of radio and $\gamma$-ray pulsars using Monte Carlo techniques. At birth, neutron stars are spatially distributed in the Galactic disk, with supernova-kick velocities, and randomly…

The known population of non-accreting neutron stars is ever growing and currently consists of more than 3500 sources. Pulsar surveys with the SKAO telescopes will greatly increase the known population, adding radio pulsars to every subgroup…

In this paper we present a brief overview of population synthesis methods with a discussion of their main advantages and disadvantages. In the second part, we present some recent results from synthesis models of close binary compact objects…

Astrophysics · Physics 2015-05-20 V. Kalogera , K. Belczynski

Known millisecond pulsars have periods longer than 1.558 ms. Recycled in binary systems, neutron stars can attain very short spin periods. In this paper we investigate the expected properties of the millisecond pulsar distribution by…

Astrophysics · Physics 2009-10-30 A. Possenti , M. Colpi , N. D'Amico , L. Burderi

Precise measurement of stellar properties through the observation of continuous gravitational waves from spinning non-axisymmetric neutron stars can shed light onto new physics beyond terrestrial laboratories. Although hitherto undetected,…

General Relativity and Quantum Cosmology · Physics 2024-01-09 Yuhan Hua , Karl Wette , Susan M. Scott , Matthew D. Pitkin

Population synthesis is used to model the number of neutron stars in globular clusters that are observed as LMXBs and millisecond PSRs. The dynamical interaction between binary and single stars in a GC are assumed to take place with a…

Astrophysics · Physics 2009-11-11 A. G. Kuranov , K. A. Postnov

Radio pulsar observations probe the lives of Galactic double neutron-star (DNS) systems while gravitational waves enable us to study extragalactic DNS in their final moments. By combining measurements from radio and gravitational-wave…

High Energy Astrophysical Phenomena · Physics 2021-04-09 Shanika Galaudage , Christian Adamcewicz , Xing-Jiang Zhu , Simon Stevenson , Eric Thrane

The detection of gravitational wave events has stimulated theoretical modeling of the formation and evolution of double compact objects (DCOs). However, even for the most studied isolated binary evolution channel, there exist large…

High Energy Astrophysical Phenomena · Physics 2024-02-08 Zhu-Ling Deng , Xiang-Dong Li , Yong Shao , Kun Xu

Binary populations in young star clusters show multiplicity fractions both lower and up to twice as high as those observed in the Galactic field. We follow the evolution of a population of binary stars in dense and loose star clusters…

Astrophysics of Galaxies · Physics 2015-06-05 Michael Marks , Pavel Kroupa

A crucial test any proposed evolutionary scenario must pass is can the birth rate of the sources we see be sustained by the proposed progenitor population? In this review, I investigate the methods used to determine the birth rates of…

Astrophysics · Physics 2007-05-23 D. R. Lorimer

Recent observations have unveiled a population of pulsars with spin periods of a few minutes to hours that lie beyond the traditional ``death line.'' If they originate from neutron stars (NSs), the existence of such ultra-long period…

High Energy Astrophysical Phenomena · Physics 2025-07-16 Savannah Cary , Wenbin Lu , Calvin Leung , Tin Long Sunny Wong

In this paper, I review some of the basic properties of the pulsar population in globular clusters (GCs) and compare it with the the Galactic disk population. The neutron stars (NSs) in GCs were likely formed - and appear to continue…

Astrophysics of Galaxies · Physics 2015-06-11 Paulo C. C. Freire