A unified hoop conjecture for black holes and horizonless compact stars

2021/01/18 by Yan Peng, Peng, Yan
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.48550/arxiv.2101.07353

5 pages

arxiv created 2021/01/18 · openalex publication_date 2021/01/18 · arxiv updated 2021/01/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a unified version of hoop conjecture valid for various black holes and horizonless compact stars. This conjecture is expressed by the mass to circumference ratio 4πM_in/C\leqslant 1, where C is the circumference of the smallest ring that can engulf the object in all azimuthal directions and M_in is the mass within the engulfing sphere.

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