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arXiv 2403.18752gr-qcastro-ph.HE
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Quintessence 场景下的中子星质量-半径关系分析

Neutron Stars Mass-Radius relations analysis in the Quintessence scenario

A. Campitelli, L. Mastrototaro

AI总结:

本文基于 Kiselev 模型和重子物质状态方程 BSk22,研究了 Quintessence 场对中子星质量-半径关系的影响,发现该场导致质量-半径关系保持不变,使其与普通物质无法区分。

摘要:

本文探讨了广义相对论修正对中子星质量-半径关系的影响,该影响由 Quintessence 场的存在引起。我们特别考虑了 Kiselev 模型,根据该模型,存在于整个宇宙中的 Quintessence 场也可能存在于大质量天体周围。考虑到 A. Y. Potekhin 等人推导的重子物质状态方程 BSk22,我们推断出在存在 Quintessence 场的情况下中子星质量的上限。Quintessence 的存在产生了一种特殊效应,使得质量-半径关系保持不变,因此 Quintessence 的存在与普通物质无法区分,至少对于本文研究的 Kiselev 模型而言是如此。

英文摘要:

In this paper, we explore the effects of General Relativity modification on the Mass-Radius relations of Neutron Stars induced by the presence of the Quintessence field. We consider, in particular, the Kiselev model, according to which the Quintessence field, being present in the entire Universe, might also be present around massive objects. Considering the Equation of State (EoS) for Baryonic matter BSk22 derived by A. Y. Potekhin et al., we infer the upper limit for NS masses in the presence of Quintessence. The presence of Quintessence generates a peculiar effect for which the Mass-Radius relation is unvaried and therefore the presence of Quintessence is indistinguishable from ordinary matter, at least for the Kiselev model studied in this paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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