Black Holes as Unexpected Beacons of the Early Universe ⚡ экспресс
Original: "Revised AGN Spectral Model Reveals a More Significant Role in Cosmic Reionization"
New research reveals that supermassive black holes emitted 3–4 times more ultraviolet light than previously thought, playing a key role in the reionization of the universe.
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Surprising fact: the modest black holes at the hearts of galaxies turned out to be much brighter in ultraviolet light than astronomers thought. They generate 3-4 times more ionizing radiation, making them significant players in the era of reionization — when the universe became transparent. Perhaps it was these ancient 'beacons' that pierced the darkness.
🎯 Reionization took about 600 million years and was uneven: like beacons lighting up at different points in the ocean, slowly dispersing the fog and leaving isolated dark 'islands' of neutral hydrogen.