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Genaro Suarez

2 articles · 30 co-authors · latest: 2025-11-19

Failed Star Shakes Up a Phosphine Cocktail

Using Webb, astronomers peered into the atmosphere of the brown dwarf Wolf 1130C and found phosphine — a gas familiar from Jupiter. Its abundance is ten times higher than expected, pointing to vigorous mixing of layers, like in a planetary mixer. Now the boundary between giant planets and brown dwar
arXiv:2510.03916 · 2025-10-04

Webb Spots Chemical Weather on Brown Dwarfs

Astronomers studied the twinkling of the binary brown dwarf system WISE 1049AB. For the warmer component, light from methane and carbon monoxide fluctuated more than from water, which can't be explained by clouds. A new mechanism—chemical instability—has been discovered. A 3D map of atmospheric wave
arXiv:2511.15667 · 2025-11-19