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Generating perfect fluid spheres in general relativity

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arxiv gr-qc/0503007 v1 pith:Z7WWOHBJ submitted 2005-03-02 gr-qc

Generating perfect fluid spheres in general relativity

classification gr-qc
keywords fluidperfectspheresgeneraldevelopleadpreviouslyrelativity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Ever since Karl Schwarzschild's 1916 discovery of the spacetime geometry describing the interior of a particular idealized general relativistic star -- a static spherically symmetric blob of fluid with position-independent density -- the general relativity community has continued to devote considerable time and energy to understanding the general-relativistic static perfect fluid sphere. Over the last 90 years a tangle of specific perfect fluid spheres has been discovered, with most of these specific examples seemingly independent from each other. To bring some order to this collection, in this article we develop several new transformation theorems that map perfect fluid spheres into perfect fluid spheres. These transformation theorems sometimes lead to unexpected connections between previously known perfect fluid spheres, sometimes lead to new previously unknown perfect fluid spheres, and in general can be used to develop a systematic way of classifying the set of all perfect fluid spheres.

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Cited by 1 Pith paper

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  1. Revisiting Schwarzschild's constant density star in isotropic coordinates

    gr-qc 2026-05 unverdicted novelty 3.0

    Re-derivation of the constant-density star in isotropic coordinates produces a transparent metric and highlights under-appreciated special cases including pressure gravitating alone and naked singularities.