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Related papers: Modeling Dense Stellar Systems

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Neutron stars are valuable laboratories for the study of dense matter. Recent observations have uncovered both massive and low-mass neutron stars and have also set constraints on neutron star radii. The largest mass measurements are…

Nuclear Theory · Physics 2013-05-16 James M. Lattimer

It is generally agreed on that the tremendous densities reached in the centers of neutron stars provide a high-pressure environment in which numerous novel particles processes are likely to compete with each other. These processes range…

Astrophysics · Physics 2008-11-26 Fridolin Weber

Neutron stars -- compact objects with masses similar to that of our Sun but radii comparable to the size of a city -- contain the densest form of matter in the universe that can be probed in terrestrial laboratories as well as in earth- and…

Nuclear Theory · Physics 2022-10-06 J. Piekarewicz

We review the current state of dynamical modeling for galaxies in terms of being able to measure both the central black hole mass and stellar orbital structure. Both of these must be known adequately to measure either property. The current…

Astrophysics · Physics 2007-05-23 Karl Gebhardt

White dwarfs and neutron stars are stellar objects with masses comparable to that of our sun. However, as the endpoint stages of stellar evolution, these objects do not sustain any thermonuclear burning and therefore can no longer support…

Astrophysics · Physics 2007-05-23 Shmuel Balberg , Stuart L. Shapiro

Neutron stars are the most dense objects in the observable Universe and conventionally one uses nuclear theory to obtain the equation of state (EOS) of dense hadronic matter and the global properties of these stars. In this work, we review…

Nuclear Theory · Physics 2009-02-03 T. K. Jha

Matter inside neutron stars is compressed to densities several times greater than nuclear saturation density, while maintaining low temperatures and large asymmetries between neutrons and protons. Neutron stars, therefore, provide a unique…

In the cold dark matter scenario, the smallest dark matter halos may be earth mass or smaller. These microhalos would be the densest dark matter objects in the Universe, making their accurate characterization important for astrophysical…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-23 M. Sten Delos

We present preliminary results of the application of a new sophisticated code which allows high precision integration of orbits of stars belonging to a dense stellar system moving in the vicinity of a massive black hole. This mimics the…

Astrophysics of Galaxies · Physics 2011-12-30 R. Capuzzo-Dolcetta , M. Spera

Neutron stars are unique laboratories to probe matter in extreme conditions, not accessible in terrestrial laboratories. Here, we discuss the modelling of the neutron-star equation of state, particularly in connection with recent…

High Energy Astrophysical Phenomena · Physics 2021-10-07 F. Gulminelli , A. F. Fantina

Neutron stars change their structure with accumulation of dark matter. We study how their mass is influenced from the environment. Close to the sun, the dark matter accretion from the neutron star does not have any effect on it. Moving…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-10 Antonino Del Popolo , Morgan Le Delliou , Maksym Deliyergiyev

One of the problems for the cyclic Universe will be its compatibility with a vast population of indestructible black holes that accumulate from cycle to cycle. The article considers a simple iterative model of the evolution of black holes…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-25 Nick Gorkavyi , Sergei Tyul'bashev

The numerical simulation of turbulence in stars has led to a rich set of possibilities regarding stellar pulsations, asteroseismology, thermonuclear yields, and formation of neutron stars and black holes. The breaking of symmetry by…

Solar and Stellar Astrophysics · Physics 2016-10-05 W. David Arnett , Casey Meakin

Due to their extreme density and low temperature, neutron stars (NS) are efficient probes to unveil interactions between standard model and dark matter (DM) particles. From elastic scatterings on NS material, DM can get gravitationally…

High Energy Physics - Phenomenology · Physics 2019-05-28 Raghuveer Garani , Yoann Genolini , Thomas Hambye

In the past four decades a new type of astronomy has emerged, where instead of looking up into the sky "telescopes" are buried miles underground or deep under water or ice and search not for photons (that is, light), but rather for…

Astrophysics · Physics 2008-11-26 E. Waxman

Dark matter is one of the pillars of the current standard model of structure formation: it is assumed to constitute most of the matter in the Universe. However, it can so far only be probed indirectly through its gravitational effects, and…

Black holes are popping up all over the place: in compact binary X-ray sources and GRBs, in quasars, AGNs and the cores of all bulge galaxies, in binary black holes and binary black hole-neutron stars, and maybe even in the LHC! Black holes…

Astrophysics · Physics 2007-11-13 Stuart L. Shapiro

A common question about compact objects in high energy astrophysics is whether it is possible to distinguish black hole from neutron star systems with some other property that is not the mass of the compact object. Up to now a few…

Astrophysics · Physics 2016-08-30 T. Di Salvo , R. Iaria , N. Robba , L. Burderi

Neutron Stars (NSs), among the densest objects in the Universe, are exceptional laboratories for investigating Dark Matter (DM) properties. Recent theoretical and observational developments have heightened interest in exploring the impact…

High Energy Astrophysical Phenomena · Physics 2026-01-21 Francesco Grippa , Gaetano Lambiase , Tanmay Kumar Poddar