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Related papers: Pulsar Population Synthesis with Magnetorotational…

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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…

Astrophysics · Physics 2009-11-06 T. Regimbau , J. A. de Freitas Pacheco

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…

High Energy Astrophysical Phenomena · Physics 2014-06-27 Miguel Gullón , Juan A. Miralles , Daniele Viganò , José A. Pons

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

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…

High Energy Astrophysical Phenomena · Physics 2015-09-30 M. Gullón , J. A. Pons , J. A. Miralles , D. Viganò , N. Rea , R. Perna

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…

High Energy Astrophysical Phenomena · Physics 2024-11-27 Mattéo Sautron , Jérôme Pétri , Dipanjan Mitra , Ludmilla Dirson

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…

High Energy Astrophysical Phenomena · Physics 2014-11-20 S. B. Popov , J. A. Pons , J. A. Miralles , P. A. Boldin , B. Posselt

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…

High Energy Astrophysical Phenomena · Physics 2016-09-08 Peter L. Gonthier , Erin Nagelkirk , Melanie Stam , Alice K. Harding

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…

High Energy Astrophysical Phenomena · Physics 2024-04-25 Michele Ronchi

We test models for the evolution of neutron star (NS) magnetic fields (B). Our model for the evolution of the NS spin is taken from an analysis of pulsar timing noise presented by Hobbs et al. (2010). We first test the standard model of a…

High Energy Astrophysical Phenomena · Physics 2013-12-12 Shuang-Nan Zhang , Yi Xie

We model the evolution of the spin frequency's second derivative $\ddot\nu$ and the braking index $n$ of radio pulsars with simulations within the phenomenological model of their surface magnetic field evolution, which contains a long-term…

High Energy Astrophysical Phenomena · Physics 2015-10-23 Yi Xie , Shuang-Nan Zhang , Jin-Yuan Liao

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 use a modified pulsar current analysis to study magnetic field decay in radio pulsars. In our approach we analyse the flow, not along the spin period axis as has been performed in previous studies, but study the flow along the direction…

High Energy Astrophysical Phenomena · Physics 2014-09-30 A. P. Igoshev , S. B. Popov

We combine pulsar population synthesis with simulation-based inference (SBI) to constrain the magnetorotational properties of isolated Galactic radio pulsars. We first develop a framework to model neutron star birth properties and their…

High Energy Astrophysical Phenomena · Physics 2024-06-06 Vanessa Graber , Michele Ronchi , Celsa Pardo-Araujo , Nanda Rea

We model the evolution of the magnetic fields of neutron stars as consisting of a long term power-law decay modulated by short term small amplitude oscillations. Our model predictions on the timing noise $\ddot\nu$ of neutron stars agree…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Shuang-Nan Zhang , Yi Xie

The origin and fate of magnetars (young, extremely magnetized neutron stars, NSs) remain unsolved. Probing their evolution is therefore crucial for investigating possible links to other species of isolated NSs, such as the X-ray dim NSs…

High Energy Astrophysical Phenomena · Physics 2021-09-29 Jedrzej A. Jawor , Thomas M. Tauris

We analyse the origin of the magnetic field decay in normal radio pulsars found by us in a recent study. This decay has a typical time scale $\sim 4 \times 10^5$~yrs, and operates in the range $\sim 10^5$~--~few$\times 10^5$~yrs. We…

High Energy Astrophysical Phenomena · Physics 2015-07-30 A. P. Igoshev , S. B. Popov

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…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Peter L. Gonthier , Caleb Billman , Alice K. Harding , Isabelle A. Grenier , Marco Pierbattista

The computation of theoretical pulsar populations has been a major component of pulsar studies since the 1970s. However, the majority of pulsar population synthesis has only regarded isolated pulsar evolution. Those that have examined…

Astrophysics · Physics 2009-11-13 Paul Kiel , Jarrod Hurley , Matthew Bailes , James Murray

The properties of the spin-down age are investigated. Based on assumption about a uniform magnetic field decay law we suggest a new method which allows us to shed light on magnetic field decay. This method is applied for following…

High Energy Astrophysical Phenomena · Physics 2015-04-17 A. P. Igoshev

We present preliminary results of a pulsar population synthesis of normal pulsars from the Galactic disk using a Markov Chain Monte Carlo method to better understand the parameter space of the assumed model. We use the Kuiper test, similar…

High Energy Astrophysical Phenomena · Physics 2012-06-27 Peter L. Gonthier , Caleb D. Billman , Alice K. Harding
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