https://doi.org/10.1140/epjc/s10052-023-11262-y
Regular Article - Theoretical Physics
Anisotropic stars made of exotic matter within the complexity factor formalism
1
Departamento de Física Aplicada, Universidad de Alicante, Campus de San Vicente del Raspeig, 03690, Alicante, Spain
2
Departamento de Ciencias Físicas, Universidad de la Frontera, Casilla 54-D, 4811186, Temuco, Chile
3
Centro de Astrofísica e Gravitação-CENTRA, Instituto Superior Técnico-IST, Universidade de Lisboa-UL, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
b
grigorios.panotopoulos@ufrontera.cl
Received:
4
October
2022
Accepted:
24
January
2023
Published online:
4
February
2023
Within Einstein’s General Relativity we study exotic stars made of dark energy assuming an extended Chaplygin gas equation-of-state. Taking into account the presence of anisotropies, we employ the formalism based on the complexity factor to solve the structure equations numerically, obtaining thus interior solutions describing hydrostatic equilibrium. Making use of well-established criteria we demonstrate that the solutions are well behaved and realistic. A comparison with another, more conventional approach, is made as well.
© The Author(s) 2023
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