Anisotropic compact stellar model: a vanishing complexity approach

• Published in: The European physical journal. C, Particles and fields Vol. 84; no. 8; pp. 817 - 13
• Main Authors: Das, Shyam, Sarkar, Nayan, Das, Amit, Pal, Shyamal Kumar
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2024; Springer Nature B.V; SpringerOpen
• Subjects: Anisotropy; Astronomy; Astrophysics and Cosmology; Complexity; Elementary Particles; Gravity; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Neutron stars; Neutrons; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Pulsars; Quantum Field Theories; Quantum Field Theory; Regular Article – Theoretical Physics; Stellar models; String Theory; Theory of relativity
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-024-13183-w

In this article, we develop a new class of solutions that describe stellar structures of recently observed pulsars. We adopt the condition of the vanishing complexity proposed by Herrera (Phys Rev D 97:044010, 2018) and an appropriate metric potential for generating the solutions. The solutions which are obtained from the complexity-free conditions, are physically well-behaved and satisfy all the rigorous conditions to describe static and spherically symmetric realistic compact objects. The features of observed anisotropic compact stars including Vela X-1, LMC X-4, Cen X-3, and EXO 1785-248 are validated with our model. It is further shown that the solutions supporting matter configurations are physically plausible, stable with positive anisotropy, and in an equilibrium state as verified by investigating the generalized TOV equation in the case of our model.