Ringdown ·
Quasinormal Modes
un
seel
.com · h(t) = h₀ e^(-t/τ) cos(2πft) · (l,m,n) = (2,2,0)
f
QNM
≈
12 kHz / M(M☉)
depends on
M, a only
phase
—
Remnant black hole
Gravitational wave
Damped sinusoid h(t)
BH spectroscopy
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.com · Ringdown QNM