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相关论文: Equation of state for supernova matter

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We present an equation of state and the composition of low-density supernova matter composed of light nuclei with mass number A \le 13. We work within the quasiparticle gas model, which accounts for bound states with decay time scales…

太阳与恒星天体物理 · 物理学 2009-08-18 Stefan Heckel , Philipp P. Schneider , Armen Sedrakian

While the equation of state (EOS) of symmetric nuclear matter (SNM) at suprasaturation densities has been relatively well constrained from heavy-ion collisions, the EOS of high-density neutron-rich matter is still largely uncertain due to…

核理论 · 物理学 2019-06-12 Ying Zhou , Lie-Wen Chen , Zhen Zhang

Neutrinos emitted during the collapse, bounce and subsequent explosion provide information about supernova dynamics. The neutrino spectra are determined by weak interactions with nuclei and nucleons in the inner regions of the star, and…

天体物理学 · 物理学 2009-12-15 S. R. Souza , A. W. Steiner , W. G. Lynch , R. Donangelo , M. A. Famiano

I review the available empirical information on the equation of state of cold strongly interacting matter, as well as the prospects for obtaining new insights from the experimental study of gravitational waves emitted by neutron stars.

核理论 · 物理学 2017-08-23 Omar Benhar

We explore protoneutron star matter in the framework of cold and dense QCD using the state-of-the-art perturbative equation of state including neutrinos fixed by a lepton fraction that is appropriate for this environment. Furthermore, we…

高能物理 - 唯象学 · 物理学 2018-07-10 J. C. Jiménez , E. S. Fraga

We investigate the impact of different properties of the nuclear equation of state in core-collapse supernovae, with a focus on the proto-neutron-star contraction and its impact on the shock evolution. To this end, we introduce a range of…

核理论 · 物理学 2020-03-13 Hannah Yasin , Sabrina Schäfer , Almudena Arcones , Achim Schwenk

The role of weakly bound neutral clusters, such as dineutrons and tetraneutrons, in matter of high density and high temperature is discussed. Under such conditions, which are characteristic of core-collapse supernovae, the lifetime of…

核理论 · 物理学 2020-04-01 I. V. Panov , A. V. Yudin

We construct the equation of state (EOS) of finite nuclei including surface and Coulomb effects in a Thomas-Fermi framework using a finite range, momentum and density dependent two-body interaction. We identify critical temperatures for…

核理论 · 物理学 2008-11-26 J. N. De , B. K. Agrawal , S. K. Samaddar

In this study, my main goal is to examine the nuclear matter properties across a wide range of conditions, such as temperature, density, asymmetry, pressure, and magnetic field. Understanding the effect of these factors on nuclear matter is…

核理论 · 物理学 2023-09-21 Vishal Parmar

In the framework of hypercolor scenario of multicomponent Dark Matter, inelastic interaction of high energy photons with the Dark Matter candidates is considered. This reaction results in production of energetic leptons and neutrinos, and…

高能物理 - 唯象学 · 物理学 2022-11-21 Vitaly Beylin

The cooling process of a protoneutron star is investigated with focus on its sensitivity to properties of hot and dense matter. An equation of state, which includes the nucleon effective mass and nuclear symmetry energy at twice the…

高能天体物理现象 · 物理学 2019-06-20 Ken'ichiro Nakazato , Hideyuki Suzuki

Motivated by a recent astrophysical measurement of the pressure of cold matter above nuclear-matter saturation density, we compute the equation of state of neutron star matter using accurately calibrated relativistic models. The uniform…

核理论 · 物理学 2014-11-20 F. J. Fattoyev , J. Piekarewicz

We present a model-independent description of low-density neutron matter based on the virial expansion. The virial equation of state provides a benchmark for all nuclear equations of state at densities and temperatures where the…

核理论 · 物理学 2009-11-11 C. J. Horowitz , A. Schwenk

We calculate the equation of state (EoS) of dense matter, using a relativistic mean field (RMF) model with a density dependent coupling that is a slightly modified form of the original NL3 interaction. For nonuniform nuclear matter we…

核理论 · 物理学 2015-03-13 G. Shen , C. J. Horowitz , S. Teige

The Equation of State (EoS) of dense matter represents a central issue in the study of compact astrophysical objects and heavy ion reactions at intermediate and relativistic energies. We have derived a nuclear EoS with nucleons and hyperons…

核理论 · 物理学 2008-11-26 Fiorella Burgio

A statistical model for the equation of state (EOS) and the composition of supernova matter is presented with focus on the liquid-gas phase transition of nuclear matter. It consists of an ensemble of nuclei and interacting nucleons in…

核理论 · 物理学 2012-11-27 Matthias Hempel , Jürgen Schaffner-Bielich

The study of the equation-of-state (EoS) describing the properties of nuclear matter away from the normal conditions is a relevant and intriguing topic of modern nuclear physics. The last decades have witnessed a substantial experimental…

核实验 · 物理学 2023-03-09 P. Russotto , M. D. Cozma , E. De Filippo , A. Le Fèvre , Y. Leifels , J. Łukasik

A fully self-consistent model of the neutron star inner crust based upon models of the nucleonic equation of state at zero temperature is constructed. The results nearly match those of previous calculations of the inner crust given the same…

核理论 · 物理学 2008-11-26 Andrew W. Steiner

A set of microscopic, covariant density-functional, and non-relativistic Skyrme-type equations of state is employed to study the structure of purely nucleonic neutron stars at finite temperature. After examining the agreement with presently…

核理论 · 物理学 2022-01-05 Jin-Biao Wei , G. F. Burgio , Ad. R. Raduta , H. -J. Schulze

We study the properties of hot beta-stable nuclear matter using equations of state derived within the Brueckner-Hartree-Fock approach at finite temperature including consistent three-body forces. Simple and accurate parametrizations of the…

核理论 · 物理学 2019-12-02 Jia-Jing Lu , Zeng-Hua Li , G. F. Burgio , H. -J Schulze