Weighing the Invisible: A Black Hole in the Early Universe ⚡ экспресс
Using high-resolution observations of carbon gas, scientists have directly measured the mass of a supermassive black hole in a galaxy from when the Universe was just 1.3 billion years old. They found the black hole weighs 6.3 billion solar masses, causing gas to move faster closer to the center. This breakthrough was possible because the black hole is shrouded in dust, which protects the carbon gas from being destroyed. It’s like measuring the heft of an invisible dancer by the swirl of their partner’s skirt. Such obscured quasars may be key to mapping early black hole growth.
To weigh an invisible black hole 13 billion years old, astronomers harnessed the power of a whirlpool. The logic is straightforward: the faster gas swirls around the galaxy's center, the more massive the gravitational 'drain.' Capturing this motion was aided by carbon—its ions emit infrared light that pierces even thick dust. Using breaking light into colors, scientists measured the sharp acceleration of clouds toward the center. The calculation revealed a giant of 6.3 billion Suns lurking there.
Previously, the mass of early black holes was estimated only indirectly. Now, the first 'dynamical weighing' was achieved—directly from the motion of matter. Dusty galaxies, once considered inconvenient for observations, actually preserved the signal like a time capsule. An unexpected twist: it was the dust itself, normally a hindrance to astronomers, that guarded the carbon glow from destruction, turning the galaxy into a perfect archive of the ancient universe. Now, such objects are prime targets for hunting the first cosmic heavyweights.
🎯 The light from carbon ions used in the study was born just 1.4 billion years after the Big Bang and traveled 12.8 billion light-years to reach our telescopes.