Results 51 to 60 of about 3,655,682 (382)
Ability of LIGO and LISA to probe the equation of state of the early Universe [PDF]
Journal 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
Neutron-star tidal deformability and equation-of-state constraints [PDF]
General 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
Dark-energy equation of state: how far can we go from Λ? [PDF]
, 2006 The equation of state of dark energy is investigated to determine how much it may deviate from the equation of state of the cosmological constant (CC). Two aspects of the problem are studied: the "expansion" around the vacuum equation of state and the problem of the crossing of the cosmological constant boundary.
arxiv +1 more source
Cosmological imprint of an energy component with general equation of state [PDF]
, 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
Analysis of equations of state for polymers
Polímeros, 2015 In the literature there are several studies comparing the accuracy of various models in describing the PvT behavior of polymers. However, most of these studies do not provide information about the quality of the estimated parameters or the sensitivity of
Erlí José Padilha Júnior +2 more
doaj +1 more source
Low-Density Neutron Matter and the Unitary Limit
Frontiers in Physics, 2021 We review the properties of neutron matter in the low-density regime. In particular, we revise its ground state energy and the superfluid neutron pairing gap and analyze their evolution from the weak to the strong coupling regime. The calculations of the
Isaac Vidaña
doaj +1 more source
Gravitational-Wave Constraints on the Neutron-Star-Matter Equation of State. [PDF]
Physical Review Letters, 2017 The detection of gravitational waves originating from a neutron-star merger, GW170817, by the LIGO and Virgo Collaborations has recently provided new stringent limits on the tidal deformabilities of the stars involved in the collision.
Eemeli Annala +3 more
semanticscholar +1 more source
A Seismic Equation of State [PDF]
Geophysical Journal International, 1967 Birch's hypothesis of a close relationship between seismic velocity and density is extended and modified so as to be in accord with theoretical predictions concerning the form of the equation of state. Although developed as a simple method to assure consistency between the seismic velocities and densities in free oscillation calculations the resulting ...
openaire +5 more sources
History of the Equation of State of Seawater [PDF]
Oceanography, 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
Fast Rotating Neutron Stars: Oscillations and Instabilities
Frontiers in Astronomy and Space Sciences, 2021 In this review article, we present the main results from our most recent research concerning the oscillations of fast rotating neutron stars. We derive a set of time evolution equations for the investigation of non-axisymmetric oscillations of rapidly ...
Christian J. Krüger +4 more
doaj +1 more source