用夸克物质和暗能量模拟紧凑天体：HESS J1731-347 和 PSR J0740+6620 的径向振荡模式比较研究

IF 4.6 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Chinese Journal of Physics Pub Date : 2024-08-23 DOI:10.1016/j.cjph.2024.08.024

Camila Sepúlveda, Grigoris Panotopoulos

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引用次数: 0

摘要

我们模拟了大质量脉冲星 J0740+6620 和轻型 HESS J1731-347 小型天体，假定 (i) 夸克物质和 (ii) 暗能量恒星。在爱因斯坦广义相对论中，假设天体由各向同性物质构成，我们对两种物质内容都采用了解析状态方程。虽然在每种情况下，天体的内部组成都非常不同，但这两种状态方程都意味着质量与半径的关系非常相似。我们计算了所有四种情况下的径向方程谱、相应的波函数以及大频率分离。我们还对不同的物质含量进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Modeling compact objects with quark matter and dark energy: A comparative study of the radial oscillation modes of HESS J1731-347 and PSR J0740+6620

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Modeling compact objects with quark matter and dark energy: A comparative study of the radial oscillation modes of HESS J1731-347 and PSR J0740+6620

We model the massive pulsar J0740+6620 and the light HESS J1731-347 compact object assuming (i) quark matter and (ii) dark energy stars. Within Einstein’s General Relativity, and assuming objects made of isotropic matter, we adopt analytic equations-of-state for both matter contents. Although the inner composition of the objects is very different in each case, both equations-of-state imply qualitatively very similar mass-to-radius relationships. We compute the spectra of radial equations for all four cases and the corresponding wave functions as well as the large frequency separations. A comparison between the different matter contents is made as well.

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来源期刊

Chinese Journal of Physics 物理-物理：综合

CiteScore

8.50

自引率

10.00%

发文量

361

审稿时长

44 days

期刊介绍： The Chinese Journal of Physics publishes important advances in various branches in physics, including statistical and biophysical physics, condensed matter physics, atomic/molecular physics, optics, particle physics and nuclear physics. The editors welcome manuscripts on: -General Physics: Statistical and Quantum Mechanics, etc.- Gravitation and Astrophysics- Elementary Particles and Fields- Nuclear Physics- Atomic, Molecular, and Optical Physics- Quantum Information and Quantum Computation- Fluid Dynamics, Nonlinear Dynamics, Chaos, and Complex Networks- Plasma and Beam Physics- Condensed Matter: Structure, etc.- Condensed Matter: Electronic Properties, etc.- Polymer, Soft Matter, Biological, and Interdisciplinary Physics. CJP publishes regular research papers, feature articles and review papers.