What does this research mean for the field?

Gravitational wave echo times for CCEGA black stars range from ~5 to 18 ms for masses of 4.5-10 solar masses and scale proportionally to M^(1.2-1.5), distinguishing them from pure Schwarzschild black holes. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

June 15, 2026Open Access

P77 Gravitational Wave Echo Time as a Function of Black Star Mass in CCEGA

Key Points

To compute the gravitational wave echo time as a function of black star mass in CCEGA using a modified TOV integrator.
Computed echo time t_echo(M) for black stars in the range of 4.5 to 10 M_sun.
Used modified TOV integrator with exponential gravitational coupling G_eff(rho).
Analyzed scaling of echo time proportional to mass with a range for alpha between 1.2 and 1.5.
Echo time ranges from approximately 5 to 18 ms in the studied mass range.
At 9-10 M_sun, echo time is approximately 14 ms, aligning with previous findings.
Scaling parameter alpha distinguishes CCEGA black stars from pure Schwarzschild setups.

Abstract

First explicit computation of the gravitational wave echo time tₑcho (M) for CCEGA black stars using a modified TOV integrator with exponential gravitational coupling Gₑff (rho) = GN exp (-rho/rhoc), rhoc = 7. 4 rhoₙuc. Echo time ranges from ~5 to 18 ms for M in 4. 5, 10 Mₛun, with tₑcho ~ 14 ms at M ~ 9-10 Mₛun, consistent with P49. Scaling tₑcho proportional to Mᵃlpha with alpha ~ 1. 2-1. 5 distinguishes CCEGA from pure Schwarzschild (alpha=1). Falsifiable with Einstein Telescope (~2035). EOS: polytropic Gamma=3 approximation; full APR4 deferred.

P77 Gravitational Wave Echo Time as a Function of Black Star Mass in CCEGA

Key Points

Abstract

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