Super Gravity Brothers

GW150914MorletSpec

The GW150914 blackhole merger event recorded by aLIGO, represented in a wavelet (morlet base) spectrogram. This spectrogram was based on the audio file released with the original announcment.

The data from the second detection, GW151226, is another beast entirely in that the signal is very much buried in the noise.

Raw data:

gw151226

Wavelet Spectrogram: gw151226CWTspec

The LIGO Open Science Center makes these data available, along with signal processing tutorials.

Now to see how the professionals do it:

I used MATLAB’s wavelet toolbox for the visualisations, aided by this example

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Spores, molds, and fungus*

*and lichens and bryophytes and mosses

curledLichenTM2016June

If you haven’t already, please put on your 3D glasses now.