Results 31 to 40 of about 3,655,682 (382)

Neutron Stars and the Nuclear Matter Equation of State

open access: yes, 2021
Neutron stars provide a window into the properties of dense nuclear matter. Several recent observational and theoretical developments provide powerful constraints on their structure and internal composition.
J. Lattimer
semanticscholar   +1 more source

Relativistic bound-state equations in three dimensions [PDF]

open access: yesPhys.Rev.C54:507-522,1996, 1996
Firstly, a systematic procedure is derived for obtaining three-dimensional bound-state equations from four-dimensional ones. Unlike ``quasi-potential approaches'' this procedure does not involve the use of delta-function constraints on the relative four-momentum.
arxiv   +1 more source

The effective Equation of State in Palatini $f(R)$ cosmology [PDF]

open access: yesThe European Physical Journal Plus, 2023, 2022
We investigate how the cosmological Equation of State can be used for scrutinizing extended theories of gravity, in particular, the Palatini $f(R)$ gravity. Specifically, the approach consists, at first, in investigating the effective Equation of State produced by a given model.
arxiv   +1 more source

The cosmic equation of state [PDF]

open access: yesAstrophysics and Space Science, 2014
7 Pages, 3 Figures.
openaire   +3 more sources

Prediction Of Solubility Of Solid N-Paraffins In Supercritical Fluids Using Modified Redlich-Kwong Equation Of State

open access: yesReaktor, 2017
Three equation of state are used to predict solubilities of solid n-pafaffins in supercritical fluids. The equations are the Redlich-Kwong, the Soave-Redlich-Kwong, and equation proposed by Hartono et.al. (2003; 2004).
Ratnawati Ratnawati
doaj   +1 more source

Cosmological Einstein-Lambda-perfect-fluid solutions with asymptotic dust or radiation equation of state [PDF]

open access: yesarXiv, 2023
This article introduces the notions of asymptotic dust and asymptotic radiation equations of state. With these non-linear generalizations of the well known dust or (incoherent) radiation equations of state the perfect-fluid equations loose any conformal covariance or privilege.
arxiv  

A NICER View of PSR J0030+0451: Implications for the Dense Matter Equation of State [PDF]

open access: yesAstrophysical Journal, 2019
Both the mass and radius of the millisecond pulsar PSR J0030+0451 have been inferred via pulse-profile modeling of X-ray data obtained by NASA’s Neutron Star Interior Composition Explorer (NICER) mission.
G. Raaijmakers   +20 more
semanticscholar   +1 more source

Reconstruction of the neutron star equation of state from $w$-quasinormal modes spectra with a piecewise polytropic meshing and refinement method [PDF]

open access: yesPhys. Rev. D 99, 104005 (2019), 2019
In this paper we present a new approach to the inverse problem for relativistic stars using quasinormal modes and the piecewise polytropic parametrization of the equation of state. The algorithm is a piecewise polytropic meshing and refinement method that reconstructs the neutron star equation of state from experimental data of the mass and the $wI ...
arxiv   +1 more source

Neutron-Star-Merger Equation of State

open access: yesUniverse, 2019
In this work, we discuss the dense matter equation of state (EOS) for the extreme range of conditions encountered in neutron stars and their mergers. The calculation of the properties of such an EOS involves modeling different degrees of freedom (such as
Veronica Dexheimer   +7 more
doaj   +1 more source

The influence of the equation of state on the cellular structure of gaseous detonations

open access: yesThe Physics of Fluids, 2021
The propagation of multidimensional gaseous detonations at elevated pressures was investigated numerically. Initial conditions at which deviations from ideal gas are expected (i.e., p0 > 2 MPa) were used to assess whether real gas effects influence their
S. Taileb   +2 more
semanticscholar   +1 more source

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