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相关论文: Classifying the Equation of State from Rotating Co…

200 篇论文

Multimessenger signals from binary neutron star (BNS) mergers are promising tools to infer the largely unknown properties of nuclear matter at densities that are presently inaccessible to laboratory experiments. The gravitational waves…

高能天体物理现象 · 物理学 2025-02-17 Christian Ecker , Tyler Gorda , Aleksi Kurkela , Luciano Rezzolla

We analyze the directional dependence of the gravitational wave (GW) emission from 15 3D neutrino radiation hydrodynamic simulations of core-collapse supernovae. Using spin weighted spherical harmonics, we develop a new analytic technique…

高能天体物理现象 · 物理学 2023-10-27 Michael A. Pajkos , Steven J. VanCamp , Kuo-Chuan Pan , David Vartanyan , Nils Deppe , Sean M. Couch

In the present paper we study the oscillations of fast rotating neutron stars with realistic equations of state (EoS) within the Cowling approximation. We derive improved empirical relations for gravitational wave asteroseismology with…

太阳与恒星天体物理 · 物理学 2013-09-04 Daniela D. Doneva , Erich Gaertig , Kostas D. Kokkotas , Christian Krüger

(Abridged) We study the gravitational radiation from gravitational collapses of rapidly rotating neutron stars induced by a phase-transition from normal nuclear matter to a mixed phase of quark and nuclear matter in the core of the stars.…

天体物理学 · 物理学 2010-11-11 L. -M. Lin , K. S. Cheng , M. -C. Chu , W. -M. Suen

The equation of state and composition of matter are calculated for conditions typical for pre-collapse and early collapse stages in core collapse supernovae. The composition is evaluated under the assumption of nuclear statistical…

高能天体物理现象 · 物理学 2012-03-26 S. I. Blinnikov , I. V. Panov , M. A. Rudzsky , K. Sumiyoshi

We have constructed a nuclear equation of state (EOS) that includes a full nuclear ensemble for use in core-collapse supernova simulations. It is based on the EOS for uniform nuclear matter that two of the authors derived recently, applying…

高能天体物理现象 · 物理学 2017-08-01 S. Furusawa , H. Togashi , H. Nagakura , K. Sumiyoshi , S. Yamada , H. Suzuki , M. Takano

Our knowledge of the properties of dense nuclear matter is usually obtained indirectly via nuclear experiments, astrophysical observations, and nuclear theory calculations. Advancing our understanding of the nuclear equation of state (EOS,…

核理论 · 物理学 2023-05-29 Yongjia Wang , Qingfeng Li

Supervised learning with a deep convolutional neural network is used to identify the QCD equation of state (EoS) employed in relativistic hydrodynamic simulations of heavy-ion collisions from the simulated final-state particle spectra…

高能物理 - 唯象学 · 物理学 2017-08-03 Long-Gang Pang , Kai Zhou , Nan Su , Hannah Petersen , Horst Stöcker , Xin-Nian Wang

Gravitational waves (GWs) from binary neutron star (BNS) merger remnants complement constraints from the inspiral phase, mass-radius measurements, and microscopic theory by providing information about the neutron-star equation of state…

高能天体物理现象 · 物理学 2025-09-24 Christian Ecker , Tyler Gorda , Aleksi Kurkela , Luciano Rezzolla

Gravitational wave (GW) astronomy opens up an entirely new window on the Universe to probe the equations of state (EOS) of neutron-rich matter. With the advent of next generation GW detectors, measuring the gravitational radiation from…

核理论 · 物理学 2014-05-08 F. J. Fattoyev , W. G. Newton , Bao-An Li

Gravitational waves are ripples in the space time fabric when high energy events such as black hole mergers or neutron star collisions take place. The first Gravitational Wave (GW) detection (GW150914) was made by the Laser Interferometer…

天体物理仪器与方法 · 物理学 2021-04-13 Yash Chauhan

We construct the equation of state (EOS) of dense matter covering a wide range of temperature, proton fraction, and density for the use of core-collapse supernova simulations. The study is based on the relativistic mean-field (RMF) theory,…

高能天体物理现象 · 物理学 2012-03-26 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi

We discuss three new equations of state (EOS) in core-collapse supernova simulations. The new EOS are based on the nuclear statistical equilibrium model of Hempel and Schaffner-Bielich (HS), which includes excluded volume effects and…

高能天体物理现象 · 物理学 2012-11-26 Matthias Hempel , Tobias Fischer , Jürgen Schaffner-Bielich , Matthias Liebendörfer

We present a pipeline to infer the equation of state of neutron stars from observations based on deep neural networks. In particular, using the standard (deterministic), as well as Bayesian (probabilistic) deep networks, we explore how one…

高能天体物理现象 · 物理学 2025-02-03 Giulia Ventagli , Ippocratis D. Saltas

Inference of the equation-of-state (EoS) of dense nuclear matter in neutron-star cores is a principal science goal of X-ray and gravitational-wave observations of neutron stars. In particular, gravitational-wave observations provide an…

广义相对论与量子宇宙学 · 物理学 2023-01-25 Rahul Kashyap , Arnab Dhani , Bangalore Sathyaprakash

Gravitational-wave (GW) observations of neutron star-black hole (NSBH) mergers are sensitive to the nuclear equation of state (EOS). We present a new methodology for EOS inference with non-parametric Gaussian process (GP) priors, enabling…

广义相对论与量子宇宙学 · 物理学 2024-07-10 Nikhil Sarin , Hiranya V. Peiris , Daniel J. Mortlock , Justin Alsing , Samaya M. Nissanke , Stephen M. Feeney

In this review article we discuss selected developments regarding the role of the equation of state (EOS) in simulations of core-collapse supernovae. There are no first-principle calculations of the state of matter under supernova…

Gravitational-wave observations of inspiralling binary neutron star systems can be used to measure the neutron-star equation of state (EOS) through the tidally induced shift in the waveform phase that depends on the tidal deformability…

广义相对论与量子宇宙学 · 物理学 2015-03-05 Benjamin D. Lackey , Leslie Wade

The Equation of State (EoS) of strongly interacting cold and hot ultra-dense QCD matter remains a major challenge in the field of nuclear astrophysics. With the advancements in measurements of neutron star masses, radii, and tidal…

高能物理 - 唯象学 · 物理学 2022-09-05 Shriya Soma , Lingxiao Wang , Shuzhe Shi , Horst Stöcker , Kai Zhou

The matched filtering paradigm is the mainstay of gravitational wave (GW) searches from astrophysical coalescing compact binaries. The compact binary coalescence (CBC) search pipelines perform the matched filter between the GW detector's…

广义相对论与量子宇宙学 · 物理学 2024-06-19 Chetan Verma , Amit Reza , Dilip Krishnaswamy , Sarah Caudill , Gurudatt Gaur