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Related papers: Determining neutron star masses with weak microlen…

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Precise and reliable measurements of the masses and radii of neutron stars with a variety of masses would provide valuable guidance for improving models of the properties of cold matter with densities above the saturation density of nuclear…

High Energy Astrophysical Phenomena · Physics 2016-04-20 M. Coleman Miller , Frederick K. Lamb

We investigate the chances that neutron stars act as the lense in a gravitational microlensing event towards the galactic bulge or a spiral arm. The observation of neutron stars by means of gravitational microlensing would allow the…

Astrophysics · Physics 2009-11-07 Dominik J. Schwarz , Dirk Seidel

Gravitational microlensing may detect dark stellar remnants - black holes or neutron stars - even if they are isolated. However, it is challenging to estimate masses of isolated dark stellar remnants using solely photometric data for…

Solar and Stellar Astrophysics · Physics 2021-09-15 P. Mroz , L. Wyrzykowski

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

Our knowledge of the birth mass function of neutron stars and black holes is based on observations of binary systems but the binary evolution likely affects the final mass of the compact object. Gravitational microlensing allows us to…

Solar and Stellar Astrophysics · Physics 2021-07-30 P. Mroz , A. Udalski , L. Wyrzykowski , J. Skowron , R. Poleski , M. Szymanski , I. Soszynski , K. Ulaczyk

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

We analyze the currently available observations of X-ray binaries in a consistent way, to re-determine the masses of the neutron stars in these systems. In particular, our attention is focussed on a realistic and consistent assessment of…

Astrophysics · Physics 2011-05-23 M. H. van Kerkwijk , J. van Paradijs , E. J. Zuiderwijk

Gravitational microlensing is a unique probe of the stellar content in strong lens galaxies. Flux ratio anomalies from gravitationally lensed supernovae (glSNe), just like lensed quasars, can be used to constrain the stellar mass fractions…

Astrophysics of Galaxies · Physics 2025-04-01 Luke Weisenbach , Thomas Collett , Wolfgang Enzi , Lindsay Oldham , Ana Sainz de Murieta

In this lecture, we give a first introduction to neutron stars, based on fundamental physical principles. After outlining their outstanding macroscopic properties, as obtained from observations, we infer the extreme conditions of matter in…

High Energy Astrophysical Phenomena · Physics 2016-09-27 Pierre M. Pizzochero

This article gives a very brief introduction about measuring the mass and radius of neutron star from X-ray observations. The masses and radii of neutron stars can be determined from photospheric radius expansion bursts in low-mass X-ray…

High Energy Astrophysical Phenomena · Physics 2015-12-23 Zhaosheng Li

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

The population of solitary compact objects in the Galaxy is very diffcult to investigate. In this paper we analyze the possibility of using microlensing searches to detect and to analyze the properties of the solitary black holes and…

Astrophysics · Physics 2015-06-24 S. Oslowski , R. Moderski , T. Bulik , K. Belczynski

Gravitational microlensing is known for baryoninc dark matter searches. Here we show that microlensing also provides a unique tool for the detection of low mass planets (such as earths and neptunes) from the ground. A planetary system forms…

Astrophysics · Physics 2009-10-28 S. H. Rhie , D. P. Bennett

We demonstrate that microlensing can be used for detecting planets in binary stellar systems. This is possible because in the geometry of planetary binary systems where the planet orbits one of the binary component and the other binary star…

The mass of single neutron stars (NSs) can be measured using astrometric microlensing events. In such events, the center-of-light motion of a star lensed by a NS will deviate from the expected non-lensed motion and this deviation can be…

High Energy Astrophysical Phenomena · Physics 2018-10-31 Eran O. Ofek

Pulsars are rotating neutron stars that are renowned for their timing precision, although glitches can interrupt the regular timing behavior when these stars are young. Glitches are thought to be caused by interactions between normal and…

High Energy Astrophysical Phenomena · Physics 2017-03-29 Wynn C. G. Ho , Cristobal M. Espinoza , Danai Antonopoulou , Nils Andersson

The distribution of masses of neutron stars, particularly the maximum mass value, is considered a probe of their formation, evolution and internal physics (i.e., equation of state). This mass distribution could in principle be inferred from…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-27 Sofia Canevarolo , Loek van Vonderen , Nora Elisa Chisari

The obvious lack of the binary stellar systems that contain neutron stars (NS) is observed at present. Partly it is caused by the fact that it is very difficult to detect neutron star in a binary system if this relativistic component does…

Solar and Stellar Astrophysics · Physics 2012-10-19 O. M. Ulyanov , S. M. Andrievsky , V. F. Gopka , A. V. Shavrina

As many as $10^9$ neutron stars populate the Galaxy, but only $\approx 10^3$ are directly observed as pulsars or as accreting sources in X-ray binaries. In principle also the accretion of the interstellar medium may make isolated neutron…

Astrophysics · Physics 2009-10-31 Aldo Treves , Roberto Turolla , Silvia Zane , Monica Colpi
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