Hidden supermassive black hole pairs may finally have a visible signal

Astronomers have proposed a new method to detect elusive supermassive black hole binaries by observing recurring light flashes caused by gravitational lensing. These systems, which form when galaxies merge, are critical for understanding galactic evolution and gravitational waves.
Why it matters
Identifying these binary systems provides essential data for testing theories of galaxy formation and improving our understanding of the universe's gravitational wave landscape.
Astronomers from the University of Oxford and the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) have outlined a new strategy for uncovering one of the universe's most elusive objects: tightly bound pairs of supermassive black holes.
The report is a straightforward summary of scientific research findings.
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