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- W4301948209 abstract "A major goal of contemporary astrophysics is understanding the origin of the most massive galaxies in the universe, particularly nearby ellipticals and spirals. Theoretical models of galaxy formation have existed for many decades, although low and high redshift observations are only beginning to put constraints on different ideas. We briefly describe these observations and how they are revealing the methods by which galaxies form by contrasting and comparing fiducial rapid collapse and hierarchical formation model predictions. The available data show that cluster ellipticals must have rapidly formed at z > 2, and that up to 50% of all massive galaxies at z ~ 2.5 are involved in major mergers. While the former is consistent with the monolithic collapse picture, we argue that hierarchal formation is the only model that can reproduce all the available observations." @default.
- W4301948209 created "2022-10-06" @default.
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- W4301948209 date "2002-12-19" @default.
- W4301948209 modified "2023-10-17" @default.
- W4301948209 title "Observing Massive Galaxy Formation" @default.
- W4301948209 doi "https://doi.org/10.48550/arxiv.astro-ph/0212468" @default.
- W4301948209 hasPublicationYear "2002" @default.
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