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

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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.
7 pages, 4 figures, to be published in ASP Conf. Ser., Galaxy Evolution: Emerging Insights and New Challenges, ed. S. Jogee, L. Hao, G. Blanc, & I.Marinova, in press

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Cosmology and Nongalactic Astrophysics, Astrophysics of Galaxies

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http://salesiana.dossiersoluciones.com/handle/123456789/223038

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0903.1937
 http://arxiv.org/abs/0903.1937

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arXiv