Webb’s Tiny Red Dots Spark Debate Over Black Hole Birth
TL;DR
NASA’s Webb has detected widespread “little red dots” whose nature is disputed: they may be distant galaxies, feeding black holes, or a new class called black hole stars powered by hidden cores. New spectra introducing Balmer breaks and revised line shapes have fueled a black hole-star/quasi-star interpretation, while others argue for traditional black holes plus dust or orientation effects. The debate is fueling tests and models about how supermassive black holes might form in the early universe, with researchers seeking distinguishing patterns and mass inferences to settle the dispute.
Topics:scienceastronomy#astronomy#balmer-break-spectra#black-hole-star#james-webb-space-telescope#little-red-dots#quasi-star
- Black Holes or Black Hole Stars? Astronomers Spar Over Webb Telescope’s ‘Little Red Dots.’ Quanta Magazine
- JWST found an object 100 billion times brighter than a star — not a star Martin Cid Magazine
- Little red dots in the Universe may conceal a previously unknown type of object technology.org
- For years, mysterious little red dots kept appearing in James Webb images of the early universe — astronomers now think one is a “black hole star,” a growing black hole hidden inside a star-like gas cocoon the size of the solar system Space Daily
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