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

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

2009-03-11

arxiv.org/abs/0903.1937v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

7 pages, 4 figures, to be published in ASP Conf. Ser., Galaxy Evolution: Emerging Insights and New Challenges, ed. S. Jogee, L

Scientific paper

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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