The Chemistry in Stellar Nurseries is Complex, and a New 3D Model Highlights It - Universe Today
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Molecular hydrogen is the raw stuff of star formation. Stars form in massive clouds of it called Giant Molecular Clouds (GMCs). When young stars form, their radiation shapes the clouds they formed in. Stars need cold, dense hydrogen gas to form, and the young stars heat up and disperse the surrounding gas, creating a barrier against further star formation. This much is known.
But there's still much more to learn about stellar feedback and how it shapes GMCs and their chemistry. There's a lot of complex chemistry inside what are called photodissociation regions, and new research shows how they shape the overall structure of a GMC.
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