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Related papers: Isolated pulsar population synthesis with simulati…

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We consider a simulated population of isolated Galactic neutron stars. The rotational frequency of each neutron star evolves through a combination of electromagnetic and gravitational wave emission. The magnetic field strength dictates the…

General Relativity and Quantum Cosmology · Physics 2013-10-25 Leslie Wade , Xavier Siemens , David L. Kaplan , Benjamin Knispel , Bruce Allen

Long-period radio transients (LPTs) are a new class of radio sources characterized by long spin periods ($P_{\text{spin}}>10^3$ s) and highly variable radio emission. While known magnetars are relatively young ($\tau<10^5$ yrs) with spin…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Jon Kwong , Kaya Mori

On the basis of the PSRPOPPY software package, we developed an evolution model of population synthesis for isolated radio pulsars by incorporating the fan beam model, an alternative radio emission beam model to the widely used conal beam…

High Energy Astrophysical Phenomena · Physics 2021-01-06 W. J. Huang , H. G. Wang

We model the population characteristics of the sample of millisecond pulsars within a distance of 1.5kpc.We find that for a braking index n=3, the birth magnetic field distribution of the neutron stars as they switch on as radio MSPs can be…

Astrophysics · Physics 2008-11-26 Lilia Ferrario , Dayal Wickramasinghe

Aims. We estimate the number of pulsars, detectable as continuous gravitational wave sources with the current and future gravitational-wave detectors, assuming a simple phenomenological model of evolving non-axisymmetry of the rotating…

General Relativity and Quantum Cosmology · Physics 2021-05-19 Marek Cieślar , Tomasz Bulik , Małgorzata Curyło , Magdalena Sieniawska , Neha Singh , Michał Bejger

We look at two contrasting spin-down models for isolated radio pulsars and, accounting for selection effects, synthesize observable populations. While our goal is to reproduce all of the observable characteristics, in this paper we pay…

Astrophysics of Galaxies · Physics 2015-05-18 Joshua P. Ridley , Duncan R. Lorimer

We produce synthetic populations of pulsars within our Galaxy and calculate the resulting scale heights as well as the radial and space velocity distributions of the pulsars. Results are presented for isolated pulsars, binary pulsars and…

Astrophysics of Galaxies · Physics 2009-11-13 Paul Kiel , Jarrod Hurley

We explore the possibility of inferring the properties of the Galactic neutron star population through machine learning. In particular, in this paper we focus on their dynamical characteristics and show that an artificial neural network is…

High Energy Astrophysical Phenomena · Physics 2021-08-11 Michele Ronchi , Vanessa Graber , Alberto Garcia-Garcia , Jose A. Pons , Nanda Rea

We present the first simulation-based inference (SBI) of cosmological parameters from field-level analysis of galaxy clustering. Standard galaxy clustering analyses rely on analyzing summary statistics, such as the power spectrum, $P_\ell$,…

We model the present day, observable, normal radio pulsar population of the Small Magellanic Cloud (SMC). The pulsars are generated with SeBa, a binary population synthesis code that evolves binaries and the constituent stellar objects up…

Solar and Stellar Astrophysics · Physics 2020-03-18 N. Titus , S. Toonen , V. A. McBride , B. W. Stappers , D. A. H. Buckley , L. Levin

We present a model of evolution of solitary neutron stars, including spin parameters, magnetic field decay, motion in the Galactic potential and birth inside spiral arms. We use two parametrizations of the radio-luminosity law and model the…

Instrumentation and Methods for Astrophysics · Physics 2020-01-10 Marek Cieślar , Tomasz Bulik , Stefan Osłowski

We investigate the birth and evolution of Galactic isolated radio pulsars. We begin by estimating their birth space velocity distribution from proper motion measurements of Brisken et al. (2002, 2003). We find no evidence for multimodality…

Astrophysics · Physics 2008-11-26 C. -A. Faucher-Giguere , V. M. Kaspi

We revisit the population of normal pulsars in the Galactic field in an `evolutionary' approach. By comparing the distributions of various parameters of synthetic pulsars detectable by the Parkes Multibeam Pulsar Survey, the Pulsar Arecibo…

High Energy Astrophysical Phenomena · Physics 2020-12-25 Anirban Chakraborty , Manjari Bagchi

Isolated pulsars are rotating neutron stars with accurately measured angular velocities $\Omega$, and their time derivatives that show unambiguously that the pulsars are slowing down. The commonly accepted view is that it arises through…

High Energy Astrophysical Phenomena · Physics 2016-08-05 Oliver Q. Hamil , Jirina R. Stone , Martin Urbanec , Gabriela Urbancova

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

Initial distributions of pulsar periods and magnetic fields are essential components of multiple modern astrophysical models. Not enough work has been done to properly constrain these distributions using direct measurements. Here we aim to…

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

Energy losses from isolated neutron stars are commonly attributed to the emission of electromagnetic radiation from a rotating point-like magnetic dipole in vacuum. This emission mechanism predicts a braking index $n=3$, which is not…

High Energy Astrophysical Phenomena · Physics 2016-12-14 Adam Rogers , Samar Safi-Harb

We investigate the birth and evolution of isolated radio pulsars using a population synthesis method, modeling the birth properties of the pulsars, their time evolution, and their detection in the Parkes and Swinburne Multibeam (MB)…

Astrophysics · Physics 2007-10-25 C. -A. Faucher-Giguere , V. M. Kaspi

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