This ferocious event occurred when the universe was only three billion years old, making it a surprising and unusual discovery.
's high resolution. These two quasars were confirmed by follow-up observations from ESA's Gaia, which precisely measured the positions, distances, and motions of these celestial objects.“We're starting to unveil this tip of the iceberg of the early binary quasar population. This is the uniqueness of this study.
Hubble looks back in time, and this double quasar pair no longer exists. The distance between the quasars was less than the size of a single galaxy. After the explosive merger of their host galaxies, they would have merged to form a supermassive black hole at its center. Along with Hubble’s observation, astronomers used W.M. Keck Observatory in Hawaii, the International Gemini Observatory in Hawaii, NSF's Karl G. Jansky Very Large Array in New Mexico, Chandra X-ray Observatory, and ESA Gaia space observatory.Galaxy mergers produce pairs of supermassive black holes , which may be witnessed as dual quasars if both SMBHs are rapidly accreting.
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