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A Clash of Clusters Provides New Clue to Dark Matter
Special ACKS Seminar: Dragan Huterer
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Cosmology Seminar: Brad Holden (UC Santa Cruz)
| What | seminar cosmology |
|---|---|
| When |
02 June 08 from 11:00 am to 12:00 pm |
| Where | Varian Room 355 |
| Contact Name | Laura Duato |
| Contact Email | lduato@stanford.edu |
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Structural Evolution in the Most Massive Galaxies
Hierarchical structure formation models predict that the most massive
dark matter halos form last. Observationally, however, there is
contradictory for evidence for evolution in the most massive galaxy
population. I will present results from studies of the structural
properties of the most massive galaxies, in both clusters and in the
field. Our results show that massive galaxies have evolved
structurally - they grow in size at a fixed mass and mae become
rounder - between z~1 and today. This evolution occurs in a way that
consistent with results from simulations of disspationless mergers.
KIPAC tea talk, Speaker: Gary Godfrey