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

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Gravitational waves (GWs) can provide crucial information about the central engines of core-collapse supernovae (CCSNe). In order to unveil the nature of GW emission in CCSNe, we apply perturbative analyses with the same underlying…

高能天体物理现象 · 物理学 2024-04-19 Shuai Zha , Oliver Eggenberger Andersen , Evan P. O'Connor

The detection and reconstruction of gravitational waves from core-collapse supernovae (CCSN) present significant challenges due to the highly stochastic nature of the signals and the complexity of detector noise. In this work, we introduce…

高能天体物理现象 · 物理学 2026-01-06 Ao-Bo Wang , Yong Yuan , Hao Cai , Xi-Long Fan

Neutron-star (NS) merger simulations are conducted for 38 representative microphysical descriptions of high-density matter in order to explore the equation-of-state dependence of the postmerger ring-down phase. The formation of a deformed,…

太阳与恒星天体物理 · 物理学 2013-05-30 A. Bauswein , H. -T. Janka , K. Hebeler , A. Schwenk

The next generation of gravitational wave detectors will improve the detection prospects for gravitational waves from core-collapse supernovae. The complex astrophysics involved in core-collapse supernovae pose a significant challenge to…

天体物理仪器与方法 · 物理学 2019-04-03 Vincent Roma , Jade Powell , Ik Siong Heng , Ray Frey

We present a methodology based on the implementation of a fully connected neural network to estimate the gravitational wave (GW) temporal evolution of the gmode fundamental resonant frequency for a Core Collapse Supernova (CCSN). To perform…

广义相对论与量子宇宙学 · 物理学 2023-04-25 Alejandro Casallas Lagos , Javier M. Antelis , Claudia Moreno , Michele Zanolin , Anthony Mezzacappa , Marek J. Szczepańczyk

The nuclear equation of state is an important component in the evolution of core collapse supernovae. In this paper we make a survey of various equations of state in the literature and analyze their effect on spherical core-collapse models…

高能天体物理现象 · 物理学 2022-03-24 Luca Boccioli , Grant J. Mathews , In-Saeng Suh , Evan P. O'Connor

The determination of the equation of state (EOS) of a neutron star (NS) and its maximum mass is very important for understanding the formation and properties of NSs under extreme conditions, but they remain open questions. Short-duration…

高能天体物理现象 · 物理学 2025-02-25 Jun-Xiang Huang , Hou-Jun Lü , En-Wei Liang

From the very first multimessenger event of GW170817, clean robust constraints can be obtained for the tidal deformabilities of the two stars involved in the merger, which provides us unique opportunity to study the equation of states…

核理论 · 物理学 2019-07-23 Ang Li , Zhen-Yu Zhu

In this work we report briefly on the gravitational wave (GW) signal computed in the context of a self-consistent, 3D simulation of a core-collapse supernova (CCSN) explosion of a 15M$_\odot$ progenitor star. We present a short overview of…

Using the latest numerical simulations of rotating stellar core collapse, we present a Bayesian framework to extract the physical information encoded in noisy gravitational wave signals. We fit Bayesian principal component regression models…

数据分析、统计与概率 · 物理学 2014-11-10 Matthew C. Edwards , Renate Meyer , Nelson Christensen

Understanding the equation of state of dense QCD matter remains a major challenge in both nuclear physics and astrophysics. Neutron star observations from electromagnetic and gravitational wave spectra provide critical insights into the…

核理论 · 物理学 2023-03-31 Plamen G. Krastev

We have performed hydrodynamic simulations of relativistic rotational supernova core collapse in axisymmetry and have computed the gravitational radiation emitted by such an event. Details of the methodology and of the numerical code have…

天体物理学 · 物理学 2009-11-07 Harald Dimmelmeier , Jose A. Font , Ewald Mueller

Understanding how matter behaves at the highest densities and temperatures is a major open problem in both nuclear physics and relativistic astrophysics. This physics is often encapsulated in the so-called high-temperature nuclear equation…

高能天体物理现象 · 物理学 2022-06-22 Mikhail M. Meskhi , Noah E. Wolfe , Zhenyu Dai , Carla Frohlich , Jonah M. Miller , Raymond K. W. Wong , Ricardo Vilalta

In this work, we apply Convolutional Neural Networks (CNNs) to detect gravitational wave (GW) signals of compact binary coalescences, using single-interferometer data from LIGO detectors. As novel contribution, we adopted a resampling…

天体物理仪器与方法 · 物理学 2020-09-10 Manuel D. Morales , Javier M. Antelis , Claudia Moreno , Alexander I. Nesterov

The recent direct detection of gravitational waves (GWs) from binary black hole mergers (2016, Phys. Rev. Lett. 116, no. 6, 061102; no. 24, 241103) opens up an entirely new non-electromagnetic window into the Universe making it possible to…

核理论 · 物理学 2016-07-20 Plamen G. Krastev , Bao-An Li

A detection of a core-collapse supernova (CCSN) gravitational-wave (GW) signal with an Advanced LIGO and Virgo detector network may allow us to measure astrophysical parameters of the dying massive star. GWs are emitted from deep inside the…

高能天体物理现象 · 物理学 2017-01-04 Jade Powell , Sarah E. Gossan , Joshua Logue , Ik Siong Heng

We present a new multivariate regression model for analysis and parameter estimation of gravitational waves observed from well but not perfectly modeled sources such as core-collapse supernovae. Our approach is based on a principal…

广义相对论与量子宇宙学 · 物理学 2014-12-17 William J. Engels , Raymond Frey , Christian D. Ott

We study two recently proposed equations of state (EOS) which are obtained from high temperature QCD, and show how they can be adapted to use them for making predictions for relativistic heavy ion collisions. The method involves extracting…

核理论 · 物理学 2014-11-18 Vinod Chandra , Ravindra Kumar , V. Ravishankar

Three-dimensional modeling has reached a level of maturity to provide detailed predictions of the gravitational wave emission in neutrino-driven core collapse supernovae. We review the status of these modeling efforts, current predictions…

高能天体物理现象 · 物理学 2024-01-23 Anthony Mezzacappa , Michele Zanolin

We review recent progress in the theoretical predictions of gravitational waves (GWs) of core-collapse supernovae. Following a brief summary of the methods in the numerical modeling, we summarize multiple physical elements that determine…

高能天体物理现象 · 物理学 2015-05-30 Kei Kotake