P59: CCEGA Black Stars as Perfect Gravitational Wave Reflectors — Evanescent Interior and Frequency Cutoff

Key Points

• We aim to explore how CCEGA black stars function as perfect reflectors of gravitational waves and establish the underlying mechanisms.
• Theoretical model analysis of CCEGA black stars' interaction with gravitational waves.
• Examination of the regge-wheeler potential barrier at the critical surface.
• Development of a reflection signature dependent on mass and frequency cutoff.
• CCEGA black stars are identified as perfect gravitational wave reflectors (R_eff = 1) at merger frequencies.
• Waves with frequencies below f_cut(M) are evanescent due to potential barriers.
• The frequency cutoff f_cut(M) varies from approximately 2,000 to 8,000 Hz and decreases with increasing mass.