The prediction of galactic gamma ray bursts was based on the idea that such events could be triggered by the interaction of binary neutron stars or neutron stars and black holes. These systems are known to emit gravitational waves, and the collision of these objects could release enormous amounts of energy, including gamma rays.

The specific prediction of galactic gamma ray bursts last year was made by a team of researchers using data from the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo gravitational wave detector. The researchers identified several gravitational wave events that could potentially be associated with the merging of neutron stars or neutron stars and black holes. Based on this data, they predicted that galactic gamma ray bursts could occur within a certain time frame.

Subsequently, observations made using gamma ray telescopes, such as the Fermi Gamma-ray Space Telescope and the Swift Gamma-Ray Burst Mission, detected several gamma ray bursts that appear to be associated with the gravitational wave events identified by LIGO and Virgo. These gamma ray bursts provide strong support for the prediction made by the researchers.

It's important to note that the detection of galactic gamma ray bursts is a relatively recent development, and further research is needed to fully understand the mechanisms behind these events and their connection to gravitational waves. Nevertheless, the successful prediction of galactic gamma ray bursts highlights the potential for multi-messenger astronomy, combining observations from different parts of the electromagnetic spectrum and gravitational wave detectors, to advance our understanding of the universe.