Results 61 to 70 of about 6,743,461 (406)

GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations [PDF]

open access: yes, 2017
Gravitational waves detected from the binary neutron star (NS) merger GW170817 constrained the NS equation of state by placing an upper bound on certain parameters, describing the binary’s tidal interactions.
D. Radice   +3 more
semanticscholar   +1 more source

Ability of LIGO and LISA to probe the equation of state of the early Universe [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2019
The expansion history of the Universe between the end of inflation and the onset of radiation-domination (RD) is currently unknown. If the equation of state during this period is stiffer than that of radiation, w > 1/3, the gravitational wave (GW ...
Daniel G. Figueroa, Erwin H. Tanin
semanticscholar   +1 more source

Potential Energy Landscape Equation of State

open access: yes, 2002
Depth, number, and shape of the basins of the potential energy landscape are the key ingredients of the inherent structure thermodynamic formalism introduced by Stillinger and Weber [F. H. Stillinger and T. A. Weber, Phys. Rev. A 25, 978 (1982)].
A. Heuer   +29 more
core   +1 more source

History of the Equation of State of Seawater [PDF]

open access: yesOceanography, 2010
As one of few who have been involved in the equation of state of seawater over the last 40 years, the author was invited to review some of the history behind its early development and also the more recent thermodynamic equation of state.
Frank J. Millero
doaj  

Cosmological imprint of an energy component with general equation of state [PDF]

open access: yes, 1997
We examine the possibility that a significant component of the energy density of the Universe has an equation of state different from that of matter, radiation, or cosmological constant ({Lambda} ).
R. Caldwell, R. Dave, P. Steinhardt
semanticscholar   +1 more source

Towards a precision calculation of the effective number of neutrinos Neff in the Standard Model: the QED equation of state [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2019
We revisit and quantify in this work several aspects of Standard Model physics at finite temperature that drive the theoretical value of the cosmological parameter, the effective number of neutrinos Neff, away from 3 in the early universe.
Jack J. Bennett   +3 more
semanticscholar   +1 more source

Neutron-star tidal deformability and equation-of-state constraints [PDF]

open access: yesGeneral Relativity and Gravitation, 2020
Despite their long history and astrophysical importance, some of the key properties of neutron stars are still uncertain. The extreme conditions encountered in their interiors, involving matter of uncertain composition at extreme density and isospin ...
K. Chatziioannou
semanticscholar   +1 more source

Revisiting Barrow's graduated inflationary universe: A warm perspective

open access: yesPhysics Letters B, 2022
It is presumed that thermal fluctuations present during inflationary epoch can make inflaton scalar field to interact with other fields resulting in the existence of a thermal component during the inflationary period.
Subhra Bhattacharya
doaj  

On the asymptotic limit of steady state Poisson--Nernst--Planck equations with steric effects [PDF]

open access: yesarXiv, 2022
When ions are crowded, the effect of steric repulsion between ions becomes significant and the conventional Poisson--Boltzmann (PB) equation (without steric effect) should be modified. For this purpose, we study the asymptotic limit of steady state Poisson--Nernst--Planck equations with steric effects (PNP-steric equations).
arxiv  

Equation of state and singularities in FLRW cosmological models [PDF]

open access: yesJ.Phys.Conf.Ser.229:012037,2010, 2010
We consider FLRW cosmological models with standard Friedmann equations, but leaving free the equation of state. We assume that the dark energy content of the universe is encoded in an equation of state $p=f(\rho)$, which is expressed with most generality in the form of a power expansion.
arxiv   +1 more source

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