Generating anisotropic models for relativistic stellar objects

2026/04/13 by Paulo Luz, Sante Carloni
Physics and Astronomy · #Anisotropy #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae #Object (grammar) #Reflection (computer programming) #Relativistic particle #Theory of relativity

paper · pdf · doi:10.1103/7ccp-1qdb

published in Physical review. D/Physical review. D. 114(2) (American Physical Society)

openalex publication_date 2026/06/11 · openalex created_date 2026/06/12 · openalex updated_date 2026/08/05

Abstract

We introduce a new type of generating theorems in General Relativity for anisotropic, static, spherically symmetric solutions of the Einstein field equations. The results are used to derive a class of solutions that can serve as new models for the interiors of compact stars. Their geometric and thermodynamic properties are studied in detail, and we show that some of the new spacetimes contain, as particular cases, other well-known solutions. Focusing on a constant-density solution, we assess the relevance of the newly found geometry as a candidate for the incompressible limit of anisotropic compact stellar objects, comparing its features with those of the Bowers-Liang spacetime.

Citations

• Observation of Gravitational Waves from a Binary Black Hole Merger
• Decoupling gravitational sources in general relativity: from perfect to anisotropic fluids

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