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arXiv · 2309.17108

Anisotropic quark stars in energy-momentum squared gravity with an interacting quark equation of state

Qian Li·Xianming Liu·Ruijun Tang·Jiayong Xiao
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Abstract

We investigate anisotropic quark stars within the context of energy-momentum squared gravity (EMSG), assuming the internal composition consists of homogeneous, charge-neutral 3-flavor interacting quark matter with ${\cal O}(m_s^4)$ corrections. We performed numerical calculations of the equation of state (EoS) and the modified Tolman-Oppenheimer-Volkoff (TOV) structure equation. Additionally, we discussed the impact of the GB coupling parameter $\alpha $ on the mass-radius relationship. Furthermore, we compared our results with astronomical observational data. Our research offers a new perspective, proposing that in EMSG, accounting for anisotropy could lead to denser stars than in isotropic scenarios.

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Qian Li, Xianming Liu, Ruijun Tang, Jiayong Xiao. 2023-09-29. Anisotropic quark stars in energy-momentum squared gravity with an interacting quark equation of state. https://arxiv.org/abs/2309.17108

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