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Related papers: The Neutron Star Mass Distribution

200 papers

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

We investigate the distribution of neutron star masses in different populations of binaries, employing Bayesian statistical techniques. In particular, we explore the differences in neutron star masses between sources that have experienced…

High Energy Astrophysical Phenomena · Physics 2022-07-22 Feryal Ozel , Dimitrios Psaltis , Ramesh Narayan , Antonia Sierra Villarreal

Fast spinning neutron stars, recycled in low mass binaries, may have accreted a substantial amount of mass. The available relativistic measurements of neutron star masses, all clustering around 1.4 M_sun, however refer mostly to slowly…

Astrophysics · Physics 2009-10-31 Luciano Burderi , Andrea Possenti , Monica Colpi , Tiziana Di Salvo , Nichi D'Amico

Matter at ultra-high densities finds a physical realization inside neutron stars. One key property is their maximum mass, which has far-reaching implications for astrophysics and the equation of state of ultra dense matter. In this work, we…

High Energy Astrophysical Phenomena · Physics 2025-07-01 Lívia S. Rocha , Jorge E. Horvath , Lucas M. de Sá , Gustavo Y. Chinen , Lucas G. Barão , Marcio G. B. de Avellar

We summarize our current knowledge of neutron star masses and radii. Recent instrumentation and computational advances have resulted in a rapid increase in the discovery rate and precise timing of radio pulsars in binaries in the last few…

High Energy Astrophysical Phenomena · Physics 2016-10-05 Feryal Ozel , Paulo Freire

Radio observations of neutron star binary pulsar systems have constrained strongly the masses of eight neutron stars. Assuming neutron star masses are uniformly distributed between lower and upper bounds $m_l$ and $m_u$, the observations…

Astrophysics · Physics 2009-01-23 L. S. Finn

The sample of neutron stars with a measured mass is growing quickly. With the latest sample, we adopt both a flexible Gaussian mixture model and a Gaussian plus Cauchy-Lorentz component model to infer the mass distribution of neutron stars…

High Energy Astrophysical Phenomena · Physics 2020-09-10 Dong-Sheng Shao , Shao-Peng Tang , Jin-Liang Jiang , Yi-Zhong Fan

We show that the maximum and the minimum mass of merging neutron stars can be estimated with upcoming gravitational wave observations. We simulate populations of binary neutron star signals and model their mass distribution including upper…

High Energy Astrophysical Phenomena · Physics 2020-09-30 Katerina Chatziioannou , Will M. Farr

It is known that the mass distribution of the known neutron stars (NSs) exhibits a bimodal pattern. The origin of this distribution remains a subject of debate. We constructed a super-Eddington accretion model for accreting neutron stars…

Solar and Stellar Astrophysics · Physics 2026-05-26 Zhe Hu , GuoLiang Lv , ChunHua Zhu , Sufen Guo , Helei Liu , Lin Li , Zhuowen Li , Zhenwei Li

The mass distribution of neutron stars encodes information about their formation and binary evolution. We compare the masses of two distinct populations: I) the recently identified Gaia neutron stars in wide orbits with solar-like…

Solar and Stellar Astrophysics · Physics 2025-11-11 Aryanna Schiebelbein-Zwack , L. A. C van Son , Maya Fishbach , Will M. Farr

We present in this article an overview of the problem of neutron star masses. After a brief appraisal of the methods employed to determine the masses of neutron stars in binary systems, the existing sample of measured masses is presented,…

High Energy Astrophysical Phenomena · Physics 2018-04-25 J. E. Horvath , R. Valentim

The discovery of two neutron stars with gravitational masses $\approx 2~M_\odot$ has placed a strong lower limit on the maximum mass of nonrotating neutron stars, and with it a strong constraint on the properties of cold matter beyond…

High Energy Astrophysical Phenomena · Physics 2015-08-19 Scott Lawrence , Justin G. Tervala , Paulo F. Bedaque , M. Coleman Miller

The ages and masses of neutron stars (NSs) are two fundamental threads that make pulsars accessible to other sub-disciplines of astronomy and physics. A realistic and accurate determination of these two derived parameters play an important…

Astrophysics of Galaxies · Physics 2015-05-27 Bulent Kiziltan

Neutron star properties depend on both nuclear physics and astrophysical processes, and thus observations of neutron stars offer constraints on both large-scale astrophysics and the behavior of cold, dense matter. In this study, we use…

High Energy Astrophysical Phenomena · Physics 2025-10-29 Jacob Golomb , Isaac Legred , Katerina Chatziioannou , Philippe Landry

The mass function of neutron stars (NSs) contains information about the late evolution of massive stars, the supernova explosion mechanism, and the equation-of-state of cold, nuclear matter beyond the nuclear saturation density. A number of…

High Energy Astrophysical Phenomena · Physics 2016-05-06 John Antoniadis , Thomas M. Tauris , Feryal Ozel , Ewan Barr , David J. Champion , Paulo C. C. Freire

We have analyzed in this work the updated sample of neutron star masses derived from the study of a variety of 96 binary systems containing at least one neutron star using Bayesian methods. After updating the multimodality of the…

High Energy Astrophysical Phenomena · Physics 2021-07-20 L. S. Rocha , R. R. A. Bachega , J. E. Horvath , P. H. R. S. Moraes

The distribution of masses for neutron stars is analyzed using the Bayesian statistical inference, evaluating the likelihood of proposed gaussian peaks by using fifty-four measured points obtained in a variety of systems. The results…

Solar and Stellar Astrophysics · Physics 2015-05-27 R. Valentim , E. Rangel , J. E. Horvath

The birth mass function of neutron stars encodes rich information about supernova explosions, double star evolution, and properties of matter under extreme conditions. To date, it has remained poorly constrained by observations, however.…

We infer the mass distribution of neutron stars in binary systems using a flexible Gaussian mixture model and use Bayesian model selection to explore evidence for multi-modality and a sharp cut-off in the mass distribution. We find…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Justin Alsing , Hector O. Silva , Emanuele Berti

We study an impact of asymmetric dark matter on properties of the neutron stars and their ability to reach the two solar masses limit, which allows us to present a new range of masses of dark matter particles and their fractions inside the…

High Energy Astrophysical Phenomena · Physics 2020-10-07 O. Ivanytskyi , V. Sagun , I. Lopes
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