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Quasar at the Dawn of the Universe “Blinked” for Astronomers have observed the flickering quasar J0439+1634 as it appeared just 850 million years after the Big Bang — one of the earliest such objects

4d ago· 1 min readNews

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Twitter / XQuasar at the Dawn of the Universe “Blinked” for Astronomers have observed the flickering quasar J0439+1634 as it appeared just 850 million years after the Big Bang — one of the earliest such objectsastronomerszmescience.com
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Quasar at the Dawn of the Universe “Blinked” for Astronomers have observed the flickering quasar J0439+1634 as it appeared just 850 million years after the Big Bang — one of the earliest such objects ever studied in detail. By analyzing variations in its light, researchers mapped the region around the supermassive black hole at its core. Surprisingly, the accretion disk proved to be flat and pancake-shaped, very similar to the well-ordered disks seen in quasars from the modern, mature Universe. This finding deepens the puzzle of how supermassive black holes and their structured accretion disks could form and “settle” so rapidly in the still-young cosmos during the cosmic dawn. Key facts:The quasar is gravitationally lensed, making it appear extraordinarily bright (equivalent to trillions of Suns). Its flickering (variability) allowed precise mapping of the accretion disk’s structure and temperature. The flat disk challenges models that expected chaotic, puffy disks around rapidly growing early black holes. This discovery highlights how much we still have to learn about the rapid formation of the Universe’s most extreme objects.

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