Clumps and bumps on the road

Melinda L. Weil ()
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Melinda L. Weil: Columbia University

Nature, 1998, vol. 392, issue 6673, 228-229

Abstract: Astronomers who probe the mysteries of galaxy formation traverse a bumpy road. Some galaxies are easy to distinguish by shape: there are spheroidal ellipticals, and spirals, which contain a bulge at the centre of a disk of stars in which spiral arms curl. But how do these different types form? Does one type evolve into the other? A simple new simulation shows how a spiral galaxy might form from a single gas cloud that first collapses into many large stellar clumps.

Date: 1998
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DOI: 10.1038/32532

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