LIGO H1 Whitened (GW150914)

astro · 36 views
astro

What It Is

LIGO H1 strain, 4096 Hz, 32s around GW150914 --- ASD-whitened + 30-400 Hz bandpassed. Chirp (~0.2s) of first-detected binary-black-hole merger embedded in stationary detector noise. Distinct from raw 'LIGO Hanford' (dominated by 1-10 Hz seismic). ~12% trial-window hit rate on the chirp (public domain, GWOSC)

Interpretation

Standard analysis sees: anti-persistent; red spectrum (low-frequency / 1-over-f power); high-dimensional / space-filling. The atlas finds no named structure, but the source is distinctively extreme on AutoRegressive:ar_coef_4 (+3.4z) — beyond what the standard bank predicts for it.

What standard analysis sees
tail heaviness0.59
asymmetry0.58
occupancy0.51
short-range corr0.66
long-range memory0.12
spectral colour0.01
periodicity0.30
complexity0.29
time-irreversibility0.76
volatility clustering0.65
multifractality0.52
dimensionality0.86
nonstationarity0.46
What the atlas adds
Atlas-extreme metrics the standard bank can’t predict for this source
AutoRegressive:ar_coef_4+3.4zbank-miss 3.4σ
AutoRegressive:ar_coef_9+2.8zbank-miss 1.1σ

Composition

dtypefloat64
range[-66.81, 63.74]
unique values16384 / 16384
mean ± std-0.000205 ± 18.3

Render Gallery

Atlas Position

Nearest neighborDistance
Bearing Outer3.16cross-domain
Bearing Normal3.40cross-domain
EEG Seizure3.45cross-domain

Open in Atlas →

Which Geometries Light Up

AutoRegressiveAutoRegressive:ar_coef_1rank 1/2983.1925
AutoRegressiveAutoRegressive:ar_coef_2rank 296/298-2.7347
H4 600-CellH4 600-Cell:edge_walk_fractionrank 5/2980.6059
Spectral AnalysisSpectral Analysis:spectral_sloperank 298/298-3.9680
in exotic
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