冰冻的海沃德玻色子恒星

IF 5.3 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2025-05-22 DOI:10.1088/1475-7516/2025/05/066

Yuan Yue and Yong-Qiang Wang

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引用次数: 0

摘要

最近，在arXiv:2305.19057中研究了Einstein-Bardeen理论最小耦合到复杂、大质量、自由标量场的模型。标量场的引入破坏了视界的形成，只留下一种被称为巴丁玻色子星的解。当磁荷q超过某一临界值时，可以得到ω→0的冻结巴丁玻色子星。本文扩展到爱因斯坦-海沃德标量模型的研究，分析了模型的稳定性，得到了冻结海沃德玻色子星的解，包括基态和激发态。此外，在相同的参数下，有趣的是观察到基态和激发态冻结恒星都具有相同的临界视界和质量。

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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Frozen Hayward-boson stars

Recently, the model of the Einstein-Bardeen theory minimally coupled to a complex, massive, free scalar field was investigated in arXiv:2305.19057. The introduction of a scalar field disrupts the formation of an event horizon, leaving only a type of solution referred to as a Bardeen-boson star. When the magnetic charge q exceeds a certain critical value, the frozen Bardeen-boson star can be obtained with ω → 0. In this paper, we extend to the investigation of Einstein-Hayward-scalar model, analyze the stability of the model and obtain the solution of frozen Hayward-boson star, including the ground and excited states. Furthermore, under the same parameters, it is interesting to observe that both the ground state and the excited states frozen stars have the same critical horizon and mass.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.