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Gravitational Waves & Multi-Messenger Astronomy

Gravitational Wave Data Analysis, Black Hole & Neutron Star Mergers, Gravitational Wave Sources & Their Electromagnetic Counterparts

Image Credit: NSF/LIGO/Sonoma State University/A. Simonnet

The discovery of gravitational waves with LIGO opened a whole new window into the Cosmos. Previously ‘dark’ phenomena such as black hole mergers, which emit no light, can now be studied using the gravitational waves they emit. Some phenomena, including neutron star mergers, send us multiple ‘messengers’ – photons (light), gravitational waves, or neutrinos. Using combinations of these messengers to study the Cosmos, called multi-messenger astronomy, is revolutionizing our view of the universe.

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