File:Gravitational wave detection graph.png

English: This graph, coded in matplotlib, displays details of various gravitational wave events from four runs of the LIGO-Virgo collaboration, including neutron star mergers, black hole mergers, mergers including objects in the mass gap, and various combinations in between.

The X scale is the luminosity distance of the merger in millions of parsecs The Y scale is the mass of each component object, and the final object, in solar masses

Red triangles are detections from the first observation run (their Y height is the chirp mass, how bright the event was in gravitational waves) Yellow squares are detections from the second observation run Green squares are detections from the third observation run And the bottom section are candidate detections from the fourth observation run, which have had only a distance published and no component mass estimate. The size of those circles is directly tied to the false alarm rate, given as LOG(rate) - LOG(rate 1E-6 seconds), with 1E-6 seconds semi-arbitrarily chosen as a baseline of insignificant events.

Also included are reference redshifts, where the redshift of the event in question due to universal expansion would be 0.01c, 0.1c, or 1c. Between these are various markers for when the universe was a certain age (e.g. 10 billion years)