Nandal Model Explains Little Red Dots as 100,000-Sun Stars
Updated
Updated · Futura · Aug 9
Nandal Model Explains Little Red Dots as 100,000-Sun Stars
2 articles · Updated · Futura · Aug 9
Summary
More than 300 Little Red Dots seen by JWST may be shrouded supermassive stars about 100,000 times the Sun’s mass, according to a new model published in The Astrophysical Journal Letters.
Nandal’s team says the model matches the objects’ unusual mix of red and ultraviolet light, compact appearance and nitrogen-rich spectra—features that standard young-galaxy or active black-hole models struggle to reproduce.
The study argues the stars’ unstable late-life pulsations would eject dense gas shells, creating the cocooned look JWST observes while also supplying the chemical signatures detected in the spectra.
That interpretation also addresses a key mismatch with black-hole explanations: the Little Red Dots lack the strong X-ray and radio emissions expected from rapidly feeding supermassive black holes.
If confirmed, the objects would offer direct evidence for giant early-universe stars appearing about 600 million years after the Big Bang and collapsing into the seeds of later quasars.