What question did this study set out to answer?

This research aims to understand the collapse dynamics of CCEGA black stars at a critical mass threshold.

May 26, 2026Open Access

P63: Critical Instability at Mcrit in CCEGA — GW Burst from Phase Transition Collapse

Key Points

This research aims to understand the collapse dynamics of CCEGA black stars at a critical mass threshold.
Computed collapse dynamics for objects near Mcrit = 14.75 M☉.
Measured collapse timescale and associated gravitational wave signals.
Analyzed detectability by Einstein Telescope and LIGO O4.
Collapse timescale ranges from 0.03 to 0.08 ms at Mcrit.
GW burst frequencies observed between 10,000 and 17,000 Hz with strain h ~ 3×10⁻²² at 100 Mpc.
Unique signatures predicted for CCEGA black stars not matching other compact object models.

Abstract

At Mcrit = 14. 75 M☉, CCEGA black stars undergo a phase transition to CCEGA black holes. We compute the collapse dynamics for objects near this critical mass. The collapse timescale is tcollapse ~ 0. 03–0. 08 ms, producing a GW burst at f ~ 10, 000–17, 000 Hz with strain h ~ 3×10⁻²² at 100 Mpc. This signal is detectable by Einstein Telescope and marginally by LIGO O4 for nearby events. No other compact object model predicts a post-merger high-frequency burst at these frequencies from a mass-gap object — it is a unique CCEGA signature at Mcrit.

P63: Critical Instability at Mcrit in CCEGA — GW Burst from Phase Transition Collapse

Key Points

Abstract

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