System parameters
Separation r: —
Orbital freq: —
GW freq: —
Strain h: —
As the black holes spiral inward, gravitational wave frequency increases — the chirp. Power emitted: P ∝ (μ/a)⁵.
LIGO detected GW150914 (36+29 M☉) in 2015, confirming Einstein's 1916 prediction. The signal swept 35–150 Hz in 0.2 seconds.