SPHEREx Just Took the Fingerprints of Failed Stars Across Our Cosmic Neighborhood
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2 Articles
SPHEREx Just Took the Fingerprints of Failed Stars Across Our Cosmic Neighborhood
Brown dwarfs are the black (or brown?) sheep of astronomy. They’re too big to be considered a traditional gas planet, but they are too small to have started nuclear fusion and made the full transition to star-hood. They also change dramatically over time, cooling, shrinking, and spinning faster as they age. Or at least we think they do - our models of the atmospheres of these celestial objects aren’t the best, according to a new paper in The Ast…
NASA's SPHEREx mission has provided significant advances in the study of brown dwarfs, celestial objects that have not reached the nuclear fusion required to be considered stars. Recently, researchers led by Zafar Rustamkulov, Caltech and NASA's Jet Propulsion Laboratory have published a study that analyzes the atmospheres of these dwarfs, using data obtained by the telescope. Characteristics of brown dwarfs The brown dwarfs are celestial bodies…
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