On Exotic Objects Made of Dark Energy and Dark Matter: Mass-to-Radius Profiles and Tidal Love Numbers

IF 3.2 Q2 ASTRONOMY & ASTROPHYSICS Galaxies Pub Date : 2023-09-22 DOI:10.3390/galaxies11050101
Camila Sepúlveda, Grigoris Panotopoulos
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引用次数: 0

Abstract

We investigate some properties of exotic spherical configurations made of dark matter and dark energy. For the former we adopt a polytropic equation-of-state, while for the latter we adopt the Extended Chaplygin gas equation-of-state. Solving the Tolman-Oppenheimer-Volkoff equations, within the 2-fluid formalism, we compute the factor of compactness, the mass-to-radius relationships, as well as the tidal Love numbers and dimensionless deformabilities. A comparison between single fluid objects and 2-fluid configurations is made as well.
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关于由暗能量和暗物质组成的奇异物体:质量-半径剖面和潮汐爱数
我们研究了由暗物质和暗能量构成的奇异球面构型的一些性质。对于前者我们采用多向状态方程,而对于后者我们采用扩展的Chaplygin气体状态方程。在2流体形式下,求解Tolman-Oppenheimer-Volkoff方程,计算紧性因子、质量-半径关系、潮汐Love数和无量纲可变形性。并对单流体物体和双流体结构进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Galaxies
Galaxies Physics and Astronomy-Astronomy and Astrophysics
CiteScore
4.90
自引率
12.00%
发文量
100
审稿时长
11 weeks
期刊介绍: Es una revista internacional de acceso abierto revisada por pares que proporciona un foro avanzado para estudios relacionados con astronomía, astrofísica y cosmología. Areas temáticas Astronomía Astrofísica Cosmología Astronomía observacional: radio, infrarrojo, óptico, rayos X, neutrino, etc. Ciencia planetaria Equipos y tecnologías de astronomía. Ingeniería Aeroespacial Análisis de datos astronómicos. Astroquímica y Astrobiología. Arqueoastronomía Historia de la astronomía y cosmología. Problemas filosóficos en cosmología.
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