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arxiv: gr-qc/0104031 · v1 · pith:WAK3URI2new · submitted 2001-04-12 · 🌀 gr-qc

Maximum Mass-Radius Ratio for Compact General Relativistic Objects in Schwarzschild- de Sitter Geometry

classification 🌀 gr-qc
keywords generalcompactconstantcosmologicalgeometrymass-radiusobjectsratio
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Upper limits for the mass-radius ratio are derived for arbitrary general relativistic matter distributions in the presence of a cosmological constant. General restrictions for the red shift and total energy (including the gravitational contribution) for compact objects in the Schwarzschild-de Sitter geometry are also obtained in terms of the cosmological constant and of the mean density of the star.

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  1. Buchdahl stars and bounds with cosmological constant

    gr-qc 2025-07 unverdicted novelty 4.0

    Generalized Buchdahl bounds on horizonless object compactness are derived in the presence of a cosmological constant, preserving universality while yielding method-dependent results.