Bulge formation by the coalescence of giant clumps in primordial disk galaxies

Bruce G. Elmegreen

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arXiv · 0903.1937

Bulge formation by the coalescence of giant clumps in primordial disk galaxies

Bruce G. Elmegreen

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Abstract

The observations and evolution of clumpy, high-redshift galaxies are reviewed. Models suggest that the clumps form by gravitational instabilities in a gas-rich disk, interact with each other gravitationally, and then merge in the center where they form a bulge. The model requires smooth gas accretion during galaxy growth.

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Bruce G. Elmegreen. 2009-03-11. Bulge formation by the coalescence of giant clumps in primordial disk galaxies. https://arxiv.org/abs/0903.1937

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