Tag

Monster Stars

All articles tagged with #monster stars

JWST Dots May Be Monster Population III Stars Near Collapse
science20 days ago

JWST Dots May Be Monster Population III Stars Near Collapse

A new study proposes that JWST-detected “little red dots” are not black holes but supermassive Population III stars from the early universe that are in their final moments before collapsing into black holes. The models reproduce the objects’ extreme brightness and a distinctive V-shaped spectral dip, which may arise from the stars’ atmospheres and mass loss. Such monster stars would have very short lifetimes (tens of thousands to ~10,000 years for near-million-solar-mass stars), meaning only a narrow window to observe them; alternative explanations include direct-collapse black holes. Future X-ray checks and especially radio observations could decisively distinguish between the star and black hole scenarios.

"Discoveries of Massive Celestial Objects in Early Universe"
astronomy2 years ago

"Discoveries of Massive Celestial Objects in Early Universe"

A new study published in Astronomy & Astrophysics reveals that the weird composition of globular clusters may be the result of being baked by gigantic “monster stars” when the universe was young. These monster stars, 5,000 to 10,000 times the size of the Sun, quickly fused material into increasingly enriched matter, then spread that matter throughout the molecular cloud in a heterogeneous manner, which explains why some stars in a cluster will have significantly higher or lower concentrations of certain elements. The James Webb Space Telescope has confirmed high proportions of nitrogen in a globular cluster located 13.3 billion light-years away, which could only have been formed in the core of a supermassive star.