Simulations Identify JWST Little Red Dots as Fast-Growing Black Holes Less Than 600 Million Years After Big Bang
Updated
Updated · ScienceDaily · Sep 17
Simulations Identify JWST Little Red Dots as Fast-Growing Black Holes Less Than 600 Million Years After Big Bang
3 articles · Updated · ScienceDaily · Sep 17
Summary
New ATERUI III simulations found JWST’s little red dots closely match early-universe black holes growing at rates dozens of times faster than black holes can today.
Intense far-ultraviolet radiation from nearby galaxies kept some gas clouds from fragmenting into normal stars, letting them collapse into supermassive stars and then heavy black hole seeds.
Dense gas disks around those seeds trapped radiation and enabled highly efficient feeding, producing objects whose color and compact appearance resemble Webb’s mysterious red sources.
The model offers a natural route to the millions- to billions-solar-mass black holes already seen less than 600 million years after the Big Bang, without invoking exotic physics or rare events.
As JWST finds more little red dots and future observatories probe deeper, the framework could help explain how the earliest supermassive black holes formed and shaped young galaxies.