electromagnetic counterpart

An electromagnetic counterpart refers to the light or radiation emitted from an astronomical event, such as a supernova or the collision of neutron stars. When these events occur, they often produce not only gravitational waves but also observable electromagnetic signals, like gamma rays, X-rays, or visible light. Detecting these signals helps scientists understand the nature and mechanics of the event, providing a fuller picture of the universe. By linking gravitational waves to their electromagnetic counterparts, researchers can gather valuable information about the origins and behaviors of these cosmic phenomena.