Scientists have discovered a giant black hole in the early universe, and it’s growing faster than expected. This black hole, named RACS J0320-35, is about 1 billion times heavier than our Sun and formed just 920 million years after the Big Bang.
Using NASA’s Chandra X-ray Observatory, researchers found that this massive black hole is expanding at 2.4 times the Eddington limit. The Eddington limit defines how fast black holes can consume matter based on their gravitational pull and radiation pressure.
Luca Ighina, the lead author of the study from the Harvard and Smithsonian Center for Astrophysics, expressed surprise at the rapid growth of this black hole. It’s not alone; similar super-Eddington black holes have been discovered in this early cosmic era. Understanding why these ancient black holes seem to break the rules of astrophysics could answer big questions about how they formed and evolved.
Studies show that black holes arise from the collapse of massive stars and can grow by merging with other black holes and absorbing surrounding matter. Some of the most luminous black holes are known as quasars. These can emit so much energy that they outshine entire galaxies.
RACS J0320-35 caught scientists’ attention not just for its size, but also because its bright emissions across different wavelengths make it a prime candidate for study. Researchers believe it’s consuming between 300 and 3,000 solar masses annually, which raises questions about its stability.
The findings suggest that fast-growing black holes may have been more common in the early universe than previously thought. This insight aligns with other discoveries, such as those made by the James Webb Space Telescope, pointing to the nature and growth patterns of ancient black holes.
Thomas Connor, another co-author, emphasized the importance of studying this black hole, highlighting how it could help us understand the origins of the universe’s first black holes. As astronomers continue to explore these cosmic mysteries, we may soon uncover more about how early black holes shaped the cosmos.
For more details, you can explore the findings in The Astrophysical Journal Letters.
Explore further: NASA’s Chandra X-ray Observatory.