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相关论文: The Galactic population of canonical pulsars

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Pulsars are highly magnetized rotating neutron stars, emitting in a broad electromagnetic energy range. Reproducing the observed pulsars population refines our understanding of their formation and evolution scenarios as well as their…

高能天体物理现象 · 物理学 2024-11-27 Mattéo Sautron , Jérôme Pétri , Dipanjan Mitra , Ludmilla Dirson

This thesis work represents the first efforts to combine population synthesis studies of the Galactic isolated neutron stars with deep-learning techniques with the aim of better understanding neutron-star birth properties and evolution. In…

高能天体物理现象 · 物理学 2024-04-25 Michele Ronchi

We explore the hypothesis that the magnetic fields of neutron stars are of fossil origin. For parametrised models of the distribution of magnetic flux on the Main Sequence and of the birth spin period of the neutron stars, we calculate the…

天体物理学 · 物理学 2009-11-11 Lilia Ferrario , Dayal Wickramasinghe

We perform population synthesis studies of different types of neutron stars (thermally emitting isolated neutron stars, normal radio pulsars, magnetars) taking into account the magnetic field decay and using results from the most recent…

高能天体物理现象 · 物理学 2014-11-20 S. B. Popov , J. A. Pons , J. A. Miralles , P. A. Boldin , B. Posselt

We present a population synthesis study of the observed properties of the magnetars, which allows for X-ray selection effects, investigating the hypothesis that they are drawn from a population of progenitors that are more massive than…

天体物理学 · 物理学 2009-11-13 Lilia Ferrario , D. T. Wickramasinghe

We present a population synthesis model for normal radio pulsars in the Galaxy incorporating the latest developments in the field and the magnetorotational evolution processes. Our model considers spin-down with a force-free magnetosphere…

高能天体物理现象 · 物理学 2026-04-16 Zhihong Shi , C. -Y. Ng

Population synthesis studies constitute a powerful method to reconstruct the birth distribution of periods and magnetic fields of the pulsar population. When this method is applied to populations in different wavelengths, it can break the…

高能天体物理现象 · 物理学 2015-09-30 M. Gullón , J. A. Pons , J. A. Miralles , D. Viganò , N. Rea , R. Perna

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…

天体物理学 · 物理学 2019-08-17 Peter L. Gonthier , Michelle S. Ouellette , Joel Berrier , Shawn O'Brien , Alice K. Harding

We revisit the population synthesis of isolated radio-pulsars incorporating recent advances on the evolution of the magnetic field and the angle between the magnetic and rotational axes from new simulations of the magneto-thermal evolution…

高能天体物理现象 · 物理学 2014-06-27 Miguel Gullón , Juan A. Miralles , Daniele Viganò , José A. Pons

We present results of our pulsar population synthesis of normal pulsars from the Galactic disk using our previously developed Monte-Carlo code. From our studies of observed radio pulsars that have clearly identifiable core and cone…

高能天体物理现象 · 物理学 2016-09-08 Peter L. Gonthier , Erin Nagelkirk , Melanie Stam , Alice K. Harding

The population of young, non-recycled pulsars with spin down energies Edot >10^35 erg/s is sampled predominantly at gamma-ray and radio wavelengths. A total of 137 such pulsars are known, with partial overlap between the sources detectable…

高能天体物理现象 · 物理学 2020-07-29 Simon Johnston , D. A. Smith , A. Karastergiou , M. Kramer

New results based on methods of population synthesis, concerning magnetic field effects on the evolution of pulsars are reported. The present study confirms that models with timescales for the magnetic field decay longer than the pulsar…

天体物理学 · 物理学 2009-11-06 T. Regimbau , J. A. de Freitas Pacheco

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…

天体物理学 · 物理学 2008-11-26 Lilia Ferrario , Dayal Wickramasinghe

Population synthesis modeling of the observed dynamical and physical properties of a population is a highly effective method for constraining the underlying birth parameters and evolutionary tracks. In this work, we apply a population…

高能天体物理现象 · 物理学 2025-06-16 Mattéo Sautron , Alexander Eli McEwen , George Younes , Jérôme Pétri , Paz Beniamini , Daniela Huppenkothen

We present results of our pulsar population synthesis of normal pulsars from the Galactic disk using our previously developed computer code. On the same footing, we use slot gap and outer gap models for gamma-ray emission from normal…

高能天体物理现象 · 物理学 2015-05-27 Peter L. Gonthier , Caleb Billman , Alice K. Harding , Isabelle A. Grenier , Marco Pierbattista

This paper suggests the idea that all neutron stars experienced at birth an ultrafast decay of their magnetic fields from their initial values to their current surface values. If the electromagnetic energy radiated during this field decay…

星系天体物理 · 物理学 2012-04-05 Ricardo Heras

Pulsars are rapidly rotating neutron stars that emit radiation across the electromagnetic spectrum, from radio to gamma-rays. We use the rapid binary population synthesis suite COMPAS to model the Galactic population of canonical pulsars.…

高能天体物理现象 · 物理学 2025-10-15 Yuzhe Song , Simon Stevenson , Debatri Chattopadhyay , Joshua Tan , Timothy A. D. Paglione

This paper suggests the idea that all neutron stars experienced at birth an ultrafast decay of their magnetic fields from their initial values to their current surface values. If the electromagnetic energy radiated during this field decay…

高能天体物理现象 · 物理学 2013-10-17 Ricardo Heras

We constrain the formation rate of Galactic magnetars directly from observations. Combining spin-down rates, magnetic activity, and association with supernova remnants, we put a 2$\sigma$ limit on their Galactic formation rate at…

高能天体物理现象 · 物理学 2019-05-29 Paz Beniamini , Kenta Hotokezaka , Alexander van der Horst , Chryssa Kouveliotou

We perform population synthesis studies of different types of neutron stars taking into account the magnetic field decay. For the first time, we confront our results with observations using {\it simultaneously} the Log N -- Log S…

高能天体物理现象 · 物理学 2015-05-20 S. B. Popov , P. A. Boldin , J. A. Miralles , J. A. Pons , B. Posselt
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