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This research aims to refine the mass limits and phase boundaries of compact objects in CCEGA, particularly focusing on neutron stars and black holes.

April 10, 2026Open Access

P36 v1.1: Phase Diagram of Compact Objects in CCEGA

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This research aims to refine the mass limits and phase boundaries of compact objects in CCEGA, particularly focusing on neutron stars and black holes.
Revised maximum mass for compact objects from prior data.
Analysis of phase boundaries across various equations of state (EOS).
Examination of compact object regimes based on mass.
Updated M_max value from 2.33 to 4.26 solar masses.
Identified three distinct regimes: neutron stars, ultracompact objects, and black holes.
Confirmed GW190814 secondary matches with the ultracompact regime.

Abstract

REVISED VERSION: Updated Mₘax from 2. 33 to 4. 26 M☉ (verified in P29 v1. 4, P45 across six EOS). Three regimes: neutron stars (M 9. 20 M☉). Intermediate regime absent in GR. GW190814 secondary fits naturally. Phase boundaries depend on ρc.

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Marc López Sánchez (Tue,) studied this question.

synapsesocial.com/papers/69d892886c1944d70ce03de6 — DOI: https://doi.org/10.5281/zenodo.19463296

P36 v1.1: Phase Diagram of Compact Objects in CCEGA

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